Does Cognitive Dissonance Explain Why Behavior Can Change Attitudes

Does Cognitive Dissonance Explain Why Behavior Can Change Attitudes The proponents of the cognitive dissonance theory, Leon Festinger and James Carlsmith, argue that people are bound to change their attitudes if they realize that their actions do not reflect their true attitudes. This contradiction between actions and attitudes is referred to as cognitive dissonance (psychological tension), which can be reversed by people changing their behaviors in order to reflect the prevailing circumstances.Advertising We will write a custom essay sample on Does Cognitive Dissonance Explain Why Behavior Can Change Attitudes? specifically for you for only $16.05 $11/page Learn More On the other hand, the opponent of the cognitive dissonance theory, Daryl Bem, proposes a different theory (the theory of self-perception) in which he posits that if people are not sure about their present attitudes, they tend to assess their behaviors in order to establish their attitudes. Accordingly, Bem argues that psychological tension is not the basis of the contradictions between actions and attitudes as proposed by the cognitive dissonance theorists. To support their claim, Festinger and Carlsmith propose an experiment in which they observe opinion/behavioral changes that follow from forced compliance. The experiment involved participants performing seemingly boring tasks after which they are paid to lie to other participants that the tasks were enjoyable. The participants were paid different amounts, that is, some were given $1 while others received $20. The findings of the study show that participants who were paid $1 experienced cognitive dissonance in that their actions contradicted their true attitudes about the experimental tasks. Conversely, the $20 group showed no significant differences with the control group. These findings corroborate the cognitive dissonance theory in that when the participants were asked to do what is contrary to their true opinions; they changed the opinions to correspond to their actions. However, t he researchers observed that the larger the pressure to elicit the contradicting action, the weaker the tendency for behavioral changes. Contrary to Festinger-Carlsmith’s findings, Bem tried to replicate the experiment in order to show that the results did not necessarily support the cognitive dissonance theory. In his experiment, 75 college students were selected into the $1, $20, and control groups. Bem’s experiment was aimed at determining the accuracy involved in people judging others.Advertising Looking for essay on psychology? Let's see if we can help you! Get your first paper with 15% OFF Learn More All participants listened to recordings of one participant (Bob) who had participated in the experimental tasks, which had been described in detail to them earlier. Afterwards, the participants were allowed to listen to the conversation between the same participant (Bob) who had been paid to lie and another participant waiting in line whereby the former lied about how he had enjoyed the tasks. All the participants were then asked to evaluate the answers given by Bob to the same questions, which had been used in Festinger-Carlsmith’s experiment, and rate them in a scale of -5 (tasks were boring) to +5 (tasks were enjoyable) or 0 (tasks were neutral). The results show that the $1 group differed significantly from the control conditions in that they were on extreme ends of the scale. Relative to the self-perception theory, participants who accepted $1 to lie may have concluded that the experimental tasks must have been enjoyable because they had told someone the same considering that they had been paid $1 to lie. As a result, Bem concluded that people’s attitudes follow from their actions as opposed to behavioral changes that result from psychological tension. Furthermore, additional studies tend to point to the fact that the self-perception theory can effectively account for Bem’s experimental findings .

Terror Bird (Phorusrhacos) - Facts and Figures

Terror Bird (Phorusrhacos) - Facts and Figures Name: Terror Bird; also known as Phorusrhacos (Greek for rag bearer); pronounced FOE-roos-RAY-cuss Habitat: Plains of South America Historical Epoch: Middle Miocene (12 million years ago) Size and Weight: About eight feet tall and 300 pounds Diet: Meat Distinguishing Characteristics: Large head and beak; claws on wings    About the Terror Bird (Phorusrhacos) Phorusracos isnt known as the Terror Bird only because thats much easier to pronounce; this flightless prehistoric bird must have been utterly terrifying to the small mammals of middle Miocene South America, in light of its enormous size (up to eight feet tall and 300 pounds), clawed wings, and heavy, crushing beak. Extrapolating from the behavior of a similar (but much smaller) relative, Kelenken, some paleontologists believe the Terror Bird grabbed its quivering lunch with its talons, then grasped it between its powerful jaws and bashed it repeatedly on the ground to cave in its skull. (Its also possible that the giant beak of Phorusrhacos was a sexually selected characteristic, males with bigger beaks being more attractive to females during mating season.) Ever since the discovery of its type fossil in 1887, Phorusrhacos has gone by a bewildering number of now-outmoded or reassigned names, including Darwinornis, Titanornis, Stereornis, and Liornis. As for the name that stuck, that was bestowed by a fossil hunter who assumed (from the size of the bones) that he was dealing with a megafauna mammal, and not a birdhence the lack of the tell-tale ornis (Greek for bird) at the end of the Terror Birds genus name (Greek for rag bearer, for reasons that remain mysterious). By the way, Phorusrhacos was closely related to another terror bird of the Americas, Titanis, a comparably sized predator that went extinct at the cusp of the Pleistocene epochto the extent that a minority of experts classify Titanis as a Phorusrhacos species.

Peer Response Assignment Example | Topics and Well Written Essays - 250 words - 5

Peer Response - Assignment Example The only aspect not disclosed, and is considered a relevant aspect of mitigating risks and ensuring privacy and confidentiality of personal information is to be discerning in the information shared on social networking sites to avoid excessive exposure to external risks and threats. The information which discloses that one of the vulnerabilities is the propensity to share excessive personal information through social networking sites should be appropriately addressed. It was noteworthy that through this exercise, online users of internet applications and other technological gadgets are made aware of the risks and vulnerabilities that could expose personal identification credentials to hackers; and thereby, compromise privacy and confidentiality. One strongly believes that there is a need to be more vigilant in terms of sharing information: either consciously or unconsciously (especially when using commercial or public internet shops). Thus, it was good that enhancing selection of password and frequent changing would be a first and relevant

Effect of Temperature on Peroxidase Activity Essay

Effect of Temperature on Peroxidase Activity - Essay Example It was found that the enzymatic activity was optimum at 37 degree Celsius and the enzyme activity decreased above that temperature thus nullifying the hypothesis that the reaction rate increases as temperature increases based on Arrhenius equation. An enzyme is defined as a protein that catalyzes a chemical reaction by lowering energy barrier, biology book. Enzymes are made up of hundred of amino acids to form peptides and these peptides binds with each other to form the active protein molecules, Biology book. Nevertheless, the enzyme has a specific three dimensional shape. A part of this shape forms the active site, where the enzyme connects or combines with the substrate. The enzymes are very specific for the substrates. They bind with the specific substrates only. This is carried out by the ligand – receptor complex. The enzyme bound to its substrate, forming enzyme- substrate complex, which became activated. While they were bound together, enzyme and substrate, the enzyme’s catalytic action converts the substrate to product of the reaction. At the end of the reaction, the product is released and the same enzyme is ready to react with other substrate. The reaction could be shown as follows: Nevertheless, Dr. Rebecca Bellone pointed out that the enzymes are affected by many external parameters such as pH and Temperature. The alteration of the active site occurs due to the change in pH and temperature. The protein gets denatured and loses its active site. Finally the enzyme activity is lost. Hence care must always be taken to maintain the enzyme at specific ph and Temperature. Furthermore, in this laboratory the enzyme that was used to accelerate the hydrolysis of hydrogen peroxide was peroxidase. Peroxidase is an enzyme found in all aerobic cells, which accelerate hydrolysis of toxic hydrogen peroxide. On oxidation it yields oxygen and water, as shown in the following equation: An article was reviewed about enzymes activity and

European Films & An Analysis Essay Example for Free

European Films An Analysis Essay Films are products of culture. It is a culture woven into a piece of art. Films are like mirrors reflecting certain cultures, and these cultures in turn, are also affected back by these films in which they relate to. In fact, film is considered as one great type of art because of its effectiveness in influencing its audience or film viewers. It is therefore very important to be careful of what should be shown to the viewers though films because of the possible effects that it can do to the public, a social entity that is reemerging from the film with a well-defined historical and contemporary roles and functions. This public is where the film audiences also came from and, audience, is the group where the film is appealing to, influencing them, their thoughts, their ideas and their beliefs as they see their own culture unfolds before them in front of the screen through the motion pictures. It is actually difficult to visualize an instituted and strengthened public/national identity without reinforcement between or among those who are sharing this national identity. The role of films therefore is to relay the information back to those individuals with shared identity, values, culture and many other things in â€Å"their sense of common cultural memory or mutual belonging†1 according to David Forgacs, stated in the book of Ricci. With this high sensibility to the public, more often than not, governments take some, or even much, precautions before allowing some release of films by regulating them or, sometimes, governments take advantage of the films to promote their national goals through the encouragement of some themes in them in exchange to some benefits and privileges given to filmmakers. II. Major European Nations and Their Films It is important to understand that films are generally regulated. Some institutions located in a country or region into where the film is based or created, or the culture of that region or area where the film relates to, must also be considered in the creation of that certain film. Films must also be paralleled or must be aligned with the whims of the regulatory bodies controlling them, or else they cannot be approved for public release and viewing. At present day, these regulations are apparent to some directives given by governing bodies such as the European Union (EU) in European countries. Some of the directive’s provision includes statement such as: †broadcasters reserve for European works the majority proportion of their transmission time†2. This is the general directive. Each country however has their respective ways of regulating and directing their own film industries as well as the films that are to be shown in their respective territories, both in the past and presently. In English film industry in the early eightees, before Thatcher’s intervention, it â€Å"had been generally expected that a Labour government would increase state support for film in recognition of its cultural, and not just commercial, worth† 3 (Hill 1996, 101) Another film industry that can be seen as controlled, making the art as a means to encourage national goals, is seen in the French national film industry where there are quotas as to the percentage of European and American/foreign films that may be shown to the public, and this is claimed to be in accordance with cultural preservation of European values. In Italy however, films are freer and without so much restrictions imposed upon their approval and release to the public. In the early 1920’s Soviet era, foreign films were even utilized for the purpose of its own â€Å"industrys recovery†. 4 The following section focuses on major European nations and their national film forms in depth analyses in their institutional context. This includes the English, French and Italian film industries among others. III. Selected European Films in Their Institutional Context As the Second World War approached, it was believed that the film productions in European areas were random. That was history. Today, aside from the umbrella rules of the recent EU Directive, each nation, especially the greater ones, have their own sets of rules and policies, as well as style and culture in their respective film industries. The following are major European countries/areas and how their respective film industries are with respect to institutional context/

A Murderers Journey Through The Works Of Dostoyevsky And Poe :: essays research papers fc

A Murderer's Journey Through The Works of Dostoyevsky and Poe Some people believe that most murderers have a mental illness which causes them to commit their crime. This belief is strongly disagreed with by the authors Edgar Allan Poe and Fyodor Dostoevsky. Crime and Punishment, â€Å"The Tell-Tale Heart†, â€Å"The Black Cat†,and â€Å"The Cask of Amontillado† are very similar in this contradiction. Each murderer takes a specific journey that has been illustrated in each case. The psychological make-up of each murderer shows that he is a normal person up to the point at which something compels him to commit this horrible crime, and after that his conscience usually leads to his own downfall. Before the murder has been committed the character is a regular human being. In most cases the characters that end up carrying through with this crime are above average people. Raskolnikov from Crime and Punishment is "... quite an extraordinarily handsome young man..." (Crime and Punishment, pg.21) Raskolnikov is a very gifted university student, with a very good talent for figuring people out. Raskolinikov takes great pride and care for his family. On receiving a letter from his mother ...he quickly raised the letter to his lips and kissed it; then he spent a long time poring over the handwriting on the envelope, over the small, slanting handwriting, so familiar and dear to him, of his mother who had once taught him to read and write. (Crime and Punishment, pg.47) Raskolnikov's mother, who taught him how to read and write did this job quite well. This resulted in a very gifted and brilliant university student. This point is illustrated throughout the novel from the planning and carrying out of the murder, to interactions with the police. The narrator from the short story "The Black Cat" describes his "tenderness of heart was even so conspicuous as to make me the jest of his companions." ("The Black Cat", pg.390) He is quite a regular human being who is "...especially fond of animals..." ("The Black Cat", pg.390) The narrator also has a great wife whom he describes as being quite similar to himself, which shows that he must be quite normal if a good woman chooses to marry him. Much alike is the narrator from the short story "The Tell-Tale Heart". Again this character is full of love. The victim of his crime had done no wrong and for that the narrator "...loved the old man." ("The Tell-Tale Heart", pg.384) The narrator shows the same brilliance in planning the crime that Raskolnikov exhibits. People with great intelligence, great lives, possessions and friends must be normal people.

Crowdsourcing at AOL Essay

1. Is crowdsourcing, as used by AOL, a form of outsourcing? Why or why not? In a way yes because the work is †outsourced† to workers outside the company itself. The tasks are not done by companies employees instead the tasks are put on Amazon’s Mechanical Turk and half a milion workers that are registered there could read about the tasks and decide if they wanted to perform them. Outsourcig means that the purchase of a god or service that was previously provided internally or that could be provided internally, but is now provided by outsource vendors. This is basicly the case with AOL, they could hire personell to perform the tasks but instead they †hired† workers outside the company and that is why it is a kind of outsourcing. 2. What steps do you think Maloney might have taken to ensure that the crowdsourcing would be success for the inventory project?7 Maloney broke the large job into micro tasks and described the tasks that needed to be done. Each worker was also asked to find webpages containing a video and identify the video ´s source and location of those pages. 3. What factors should be considered when desiding whether or not to crowdsource a particular part of a business? A couple of factors should be considered when deciding to crowdsource. One of the factors is the economy itself. As mentioned in question 4, crowdsourcing is usually much cheaper then hiring a professionall to do the tasks for your company, and also you pay when the task is done and take the best option. Hiring a full time professionall or professionalls with special skills can be very expensive and you might not need them for a long period and you also need to manage them. 4. Describe the advantages of crowdsourcing. Advantages: Main advantages of crowdsourcing is that is fairly low price comparing to the proce for hiring a dedicated professional. Also the high number of people who are ready to work for you anytime. You also dont need to envise tasks to be done, instead you get the finished form and then pay for the best option. Disadvantages: Cheap labor results less credible product compared to professionals. Also there is no contract in most crowdsourcing cases which  means that workers can run anytime they want, and your design might be reused in anytime. Also there is some critics that are saying that crowdsourcing can lead to †digital sweatshops† where workers work long days with little pay and no benefits and workers might also be underaged. You dont really know who is working for you.

Are BHA and BHT bad for you? Essay

The foods we consume can have different kinds of compounds in them that we didn’t know about. These compounds added to the foods we eat are not always detectable. For instance certain compounds can be listed on the nutrition label and we can’t even taste or see them. Butylated hydroxyanisole and butylated hydroxytoluene, also known as BHA and BHT, are both phenolic compounds that are added to certain foods in order to preserve fats and oils. Even though these compounds are used to preserve the foods we eat, how do we know that BHA and BHT aren’t bad for us? Even though BHA and BHT have minimal negative effects, they are outweighed by many beneficial attributes and are not bad for us. Knowing what these compounds are made of, what their functions are, and how they work will help in answering this central question. Even though BHA and BHT both have the same function, they have different characteristics. â€Å"BHA is a mixture of the isomers 3-tert-butyl-4-hydroxya nisole and 2-tert-butyl-4-hydroxyanisole, also known as BOA.† The molecular formula of BHA is C11H16O2. BHA can be a yellow tainted or white waxy solid and can have an aromatic odor. BHT â€Å"also known as 3, 5-di-tert-butyl-4-hydroxytoluene; methyl-di-tert-butylphenol; 2, 6-di-tert-butyl-para-cresol,† has a molecular formula of C15H240. BHT physically looks like a white powder. Even though BHA and BHT are used for the same things, BHA is more stable at higher temperatures than BHT so it is used more. There are other antioxidants that can be used like NDGA but they are more expensive than BHA and BHT. BHA and BHT can be found in certain foods or can be found in certain food packaging. BHA and BHT do not have to be directly put into food and products to work. They can be placed in the packaging of food and will have the same effect. These compounds have not only been used to preserve food, but animal feed and some cosmetic products as well. Without BHA and BHT the foods we eat and products containing fats and oils would not be preserved as long as they could be. The use of BHA and BHT enables us to consume foods for a longer period of time. These compounds are antioxidants. â€Å"Oxygen reacts preferentially with BHA or BHT rather than oxidizing fats or oils, thereby protecting them from spoilage.† BHA and BHT are placed either in or inside the packaging of foods so the oxygen reacts with these compounds instead of reacting with the food which in turn will spoil it. In a sense BHA and BHT slow down the oxidizing of fats and oils because eventually most food expires or goes bad and becomes inedible. BHA and BHT are also â€Å"fat soluble and are incompatible with ferric salts.† Since BHA and BHT prevent the fat and oils in food from spoiling, they also prevent the fat and oils in some cosmetic products from spoiling. In addition to preserving cosmetics BHA and BHT are also used in certain pharmaceuticals to be prevented from oxidizing. BHA and BHT can be found in many different kinds of food products. They can be found in â€Å"breakfast cereals, snack food, chewing gum, vegetable oils, shortening, potato flakes, granules and chips, enriched rice, and candy.† BHA and BHT can be found in certain cosmetics like lipstick, lotion, and moisturizers as well. These compounds are also placed inside the packaging of foods. Sometimes when opening a snack or box of food there is a little white package that says â€Å"DO NOT EAT† or â€Å"THROW AWAY† on it. It is usually a white or clear substance inside. Those packages are silica gel, which are similar to BHA and BHT because they are all used in preserving foods, except silica gel is not used in foods and is not safe to consume. BHA and BHT compounds are also found in rubber and petroleum products, and animal feed. Sometimes you can see if a food or product contains BHA or BHT when reading the nutrition label. On the nutrition label sometimes it will say â€Å"BHT has been added to the packaging.† Foods and products that contain fats and oils in them can benefit from BHA and BHT so they can be preserved and therefore used for a longer period of time. BHA and BHT aid in other things relating to the prevention of food and products from becoming rancid due to the oxidization of the oils and fats. â€Å"BHT also prevents oxidative rancidity.† BHA and BHT preserve the color of foods and products as well. When foods or products containing fats and oils become spoiled, their color can change. For example when cereal goes bad it can become stale and moldy which will change its color. BHT and BHA also help maintain the odors of foods and products. When a food becomes rancid it can develop a bad smell. When milk spoils you can tell just by taking the lid off that it instantly has a sour smell. BHT and BHA also help preserve the flavor and taste of foods. After a food has been spoiled, in most cases it has a rancid taste and is not enjoyable or even edible. With BHA and BHT the color, odor, and flavor of foods are being maintained for a longer period of time. BHA and BHT help preserve our foods and products so they are safe to ingest and use in minimal amounts. Even though these compounds have been in many of our food and cosmetic products for a very long time, you can’t help but wonder if they are really safe to come in contact with. â€Å"BHA and BHT were given, generally recognized as safe, GRAS, status and no additional studies were required.† Even though these compounds are considered safe, the amounts in which we receive them are limited. Just because BHA and BHT preserve our foods does not mean we can use mass amounts of them in our foods and packaging to prolong the oxidization process. â€Å"The FDA limits their use in food either alone or in combination with other antioxidants to less than or equal to 0.02% of the total fat and oil content.† BHA and BHT can only be used in these limited amounts enforced by the FDA. It is impossible to ingest or come in contact with too much of BHA and BHT because manufacturers add them is such small amounts. If BHA and BHT were not safe to be used in products and product packaging, the FDA would have banned their use by now. BHA and BHT have been used since 1958 and are still being used today. These compounds are not dangerous to use but have been linked to minor health effects in humans. Lots of animal toxicology has been done with these two compounds, but there have only bee n few records of human reactions to BHA and BHT since its use. â€Å"In 1973 Fisherman and Cohen reported on seven patients with asthma, vasomotor rhinitis with or without nasal polyps, or the combination, who were suspected of intolerance to BHA and BHT.† Even though these patients had these health effects when taking BHT and BHA the details were not given as to why BHA and BHT were considered the reason for these complications. Also another study similar to this was conducted but the same results were not achieved which has proven it inconsistent. â€Å"There are no published reports of BHA or BHT challenges resulting in well documented, reproducible asthmatic responses.† Even though it was found that seven patients had asthma, it cannot be directly related to the ingestion of BHA and BHT. In a different study done in 1975 it was found that after giving patients a total dose of 17 mg of BHA and BHT, they developed recurrent urticaria which is also commonly known as hives. â€Å"Six of 47 tested to BHA reacted, and 6 of 43 reacte d to BHT; it is unclear whether these were the same six patients.† Even though BHA and BHT could have been the cause of urticaria in these patients, it is a very small number of people who reacted to it this way and is not recurring. This does not prove that BHA and BHT are harmful and will always cause people to get hives when ingesting or coming in contact with these compounds. â€Å"Delayed hypersensitivity contact dermatitis through a variety of occupational or medicinal exposures is well documented, but not common.† Skin irritation has been related to BHA and BHT intake but only from very minimal experiences. Urtcaria resulting from these compounds is not common and is not documented as a direct relation to one another. Even though these concerns have resulted from BHA and BHT use, it is not proven to be the cause of these effects on humans The only main concern of BHA and BHT is their carcinogenicity. Carcinogenicity is something that has a tendency to cause cancer in humans. Animal tests using BHA and BHT â€Å"have shown to be cancer promoting and cancer inhibiting.† In some tests BHA and BHT had prevented tumors from developing in mice, and in others the BHA and BHT promoted the development of tumors in mice. Determining whether these compounds promote or prevent cancer in humans depends on various aspects. â€Å"The time of administration, type of carcinogens already present in the body, and the target organ affected,† are a few things that would determine whether it promotes or prevents cancer from arising in humans. Even though the carcinogenicity of these compounds is unsure, the use of them was not prohibited. Any kind of chemical compounds can have suspected negative effects on humans. Even though BHA and BHT have had minor effects, their benefits significantly outweigh those effects. The main benefit of BHA and BHT is of course to preserve food and products for a longer period of time. These compounds can aid us in other ways as well. â€Å"BHA and BHT exhibit anti-microbial activity against several common food pathogens and viruses.† Without BHA and BHT it would be a lot easier for our food products to develop viruses and pathogens that can get us sick. By keeping the food from spoiling longer, these compounds also prevent the development of these pathogens and viruses. This in turn â€Å"helps retain vitamin E in food which otherwise gets destroyed when fat content is oxidized.† Vitamin E helps prevents free radicals from damaging our body tissue. These free radicals can even harm our organs and cells too. Vitamin E also helps us to build a stronger immune system so we won’t get sick as easily from bacteria or develop viruses. Lastly vitamin E is also essential to our body’s formation of red blood cells. BHA and BHT can help us obtain more vitamin E which is necessary for our health. These compounds can enable us to receive so many mor e benefits that vitamin E has by retaining the vitamin E in our foods. â€Å"The oxidization of fat, which occurs in the absence of BHA and BHT, produces peroxides which are definitely carcinogenic and mutagenic.† Carcinogenic peroxides can promote cancer and mutagenic peroxides can cause mutations in our cells. These peroxides can be extremely detrimental to us. So in other words, without BHA and BHT these dangerous peroxides would be produced that are harmful to us. The benefits of BHA and BHT are tremendous and outweigh the small possible negative effects of these compounds. Knowing about the different compounds present in your food and products is important. Just because you can’t see or taste them doesn’t mean that they are not there. BHA and BHT were created to help the preservations of food and products containing fats and oils. These compounds are essential in the prolonging of our use of these certain foods and products. Without BHA and BHT we would not be able to improve shelf life of food and the use of products. Even though BHA and BHT were somewhat connected to asthma and urticaria (hives), they were not declared the direct cause of those conditions. The only concern of BHA and BHT was its carcinogenicity which is unsure due to the confusion and mixed results of its animal testing on mice. The human benefits to BHA and BHT are great ones considering how it is only administered in very minimal amounts. BHA and BHT protect us from pathogens, viruses, and peroxides that can harm us. These compounds enable us to retain more vitamin E which promotes healthier body functions. BHA and BHT have been used for over 50 years. They are not dangerous and have not caused any detrimental effects to humans. We will continue to use BHA and BHT and receive their great benefits.

Critical Review of the use of Sampling as a Research Method

Critical Review of the use of Sampling as a Research Method An overview of sampling methods In the study of a particular phenomena present in the population it may not be possible to examine each member of the population. This is because populations under research are often too large. In this context, researchers use samples to draw conclusions on phenomena under study for large populations. Sampling is thus a critical research method. There are probability-sampling methods such as random sampling and stratified sampling (Linda 2008).Advertising We will write a custom critical writing sample on Critical Review of the Use of Sampling as a Research Method specifically for you for only $16.05 $11/page Learn More The other probability-sampling method is systematic sampling. The other category of sampling methods is non-probability sampling. Non-probability sampling includes convenience sampling and quota sampling. Other methods of non-probability sampling include snowball sampling and judgement sampling. The basic differ ence between probability and non-probability sampling methods is that in the former the sample set is constructed in a random manner. Different sampling methods have their own advantages and disadvantages. The basic characteristic of the sample is that it ought to be representative of the population from which it is drawn. This means that the sample ought to have a distribution of traits as those of the population. This is critical in ensuring that the sample results can be generalized to the wider population. This offers validity and reliability to the results of the research. Reliability of results Probability sampling methods implies that the sample is drawn from the population in a random manner (Linda 2008). This means that each member of the population has a certain chance of being picked into the sample set unlike in the non-probability sampling. This is one of the chief advantages of the probability sampling as the research is generalizable to the wider population. This is b ecause the sample is representative of the general population traits. In this context, the research results achieved from this type of sampling can be generalized to the whole population. While probability sampling offers some degree of objectivity in the construction of sample set, certain contexts necessitate non-probability sampling methods. Such contexts include instances where the researcher has limited time and financial resources to conduct probability sampling. In instances where non-probability sampling method is used there is a limitation to the generalization of the results to the wider population (Black 1999).This is because the sample may be picked from a certain section of the population accessible to the researcher. In this context, the sample may not be truly representative of the whole population and as such, the results of the population may not be generalized to the whole population (Jacobs 2011).Advertising Looking for critical writing on business econom ics? Let's see if we can help you! Get your first paper with 15% OFF Learn More Accuracy of the research findings The question of accuracy of research findings may be closely related to that of the reliability of the results. However, there might be a slight difference depending on how a researcher looks at the two concepts. Reliability of the results means that the results generally do give the trend or the traits of the studied phenomena. On the other hand, accuracy of the research findings do try to give a measure or degree of how the findings apply to the studied phenomena. In the context of accuracy of the research findings, the probability research findings do give a quantitative measure on the accuracy of the findings. This is achieved through the calculation of the sampling error. Sampling error is the degree of variation of the sample traits from those of the population. Thus in reporting the research findings, the results are given with a qualitative margin of error. Such qualitative margin of error may be useful to some researches depending on the phenomena under study. On the other hand, the non-probability research methods are more subjective in nature and lacks the randomness associated with probability sampling (Black 1999).In non-probability, sampling the sample error is not calculated. In this sense, it is difficult to establish the degree to which the sample traits differ from those of the population. This may not necessarily mean that the accuracy of the research finding is in doubt. In some instances, the researcher may not be interested in putting a quantitative measure on the accuracy of the findings of the research. On the contrast, he may be interested in understanding the nature of the phenomena under study. This is especially so in research on social aspects. A researcher’s dilemma; which sampling method to use? Several aspects influence a researcher’s choice of sampling method. Availability of resources such as time and finances is one aspect that greatly influences the choice of sampling methods. Probability sampling methods are relatively expensive in obtaining an optimal sample size from the population (Jacobs 2011). This gives the researcher to use non-probability sampling techniques in which he may draw sample members that are convenient and easily accessible to him. The nature of the phenomena under study also influences the choice of the sampling methods. Scientific studies are generally quantitative in nature and thus may require probability-sampling methods. This is in contrast to the social studies. References Black T 1999, Sampling techniques: Advantages and disadvantages. Web.Advertising We will write a custom critical writing sample on Critical Review of the Use of Sampling as a Research Method specifically for you for only $16.05 $11/page Learn More Jacobs R 2011, Educational Research: Sampling a population. Web. Linda W 2008, Sampling method s. Available from: westfallteam.com/Papers/Sampling%20Methods.pdf.

How to Make Homemade Dry Shampoo

How to Make Homemade Dry Shampoo Dry shampoo is a type of shampoo that you apply to dry hair and blow or brush out, taking excess oil and grime with it. You can buy a dry shampoo, but its super-cheap to make it, plus you get to customize the formula. Here are several easy and inexpensive recipes for homemade dry shampoo. Dry Shampoo Ingredients You can use any of these ingredients as a dry shampoo or you can mix together several ingredients, depending on what you have available. corn starchcorn mealground oatmeal (use a spice mill or coffee grinder to powder oatmeal)baking sodatalcum powder or baby powderarrowroot powder (great for blonde or light hair)cocoa powder (great for dark hair, especially if you dont want any white powder)couple of drops of essential oil (optional, for fragrance) Good choices for essential oil include grapefruit oil, peppermint oil, or eucalyptus oil. If you prefer, you can omit the oil completely or else rub a small amount on your hands and run your hands through your hair to scent it. Example Recipe: 1/4 cup corn starch2 drops peppermint oil How To Use Dry Shampoo Make sure your hair is completely dry. If it is damp, the powder will form clumps. Its called dry shampoo, right?Sprinkle the powder onto your hair from a height of several inches or apply it using an old makeup brush. Your goal is to get an even distribution of the powder, not blanket your head.Either comb the dry shampoo through your hair or use a blow dryer on its cool setting to distribute the powder.You can brush out the dry shampoo or bend down and shake it out with your fingers. Making a Wet-Dry Shampoo Another option is to make a wet-dry shampoo, which contains the same ingredients, plus a quick-evaporating liquid. You can spritz this product onto your hair and brush it out when your hair is dry. Make this type of homemade dry shampoo by adding a bit of rubbing alcohol or vodka to the dry ingredients. Note the alcohol will have a refreshing, cooling effect, but overuse of this type of dry shampoo may cause your scalp to feel dry. Cheesecloth Method If you dont have any of these ingredients or simply dont want to add anything to your hair, another option is to wrap a brush with a layer of cheesecloth. Brush your hair, depositing excess oil onto the cloth.

Wage Earnings in Australia, Canada and the United States Research Paper

Wage Earnings in Australia, Canada and the United States - Research Paper Example The game of the numbers is to be adjusted in such a way that there must not be any ambiguity in the statistical manipulation and representation. The main objectives of the particular vary study to get insights in employment records as well as the comparison in the earning rates of USA, Canada and Australia. It was the topical history of America and the broadening of the monetary gap between those at the uppermost and bottommost level of the pay rate. In one of the study, Jack Rasmus (2004) writes that what is the instance of the phenomenon that anybody of us loves to make 200,000 USD per year after completion of 25 successful years on the job. There is a lot of difference in the value of money that is being generated by the workers on the job compared to last 25 years. They are making a very different value right now. If you would like to have the same value and same benefits, then it would be far impossible like you have to get the same advantages as the CEOs get at their jobs. This is the difference of time and value maximization. Things were thought to be regularized rather than alike today those are being worse with the passage of time. It is not only for the American lower wage earning employees who have to get enough economic substances to fulfill the routine matters; it is needed to generate monetary opportunists to find financial aid for the poorer people. Without holding to the economic environment, the lifestyle they deserve for is in the agenda of policy makers along with reviewing statistical monetary indexing and calculation of wages. If review of historical data may be made, we may get a clearer insight about the earning differences, the CEOs in United States got twenty four times more than an ordinary worker in 1965. This was not an end, the proportion raised to thirty five times in 1978, then it went up to a huge figure of seventy one times in 1989. After the debt crisis in USA in 2000, the recovery brought a greatest differential figure, that s howed that CEOs were earning three hundred times more than ordinary workers even who were working at their firms- A noticeable historical moment. After some time, the time turned in to a little change with top management remuneration rate with the economic bubble (worldwide) in 2008. History observed a decline in pay rate of CEOs or top managers at a slighter pace. But it did not mean to be a substantial increase in the pay outs of general workers. The hourly wage rate was suggested to be increased to increase the motivation level of the employees. It could cause in an extravagant state that vivid the opportunity for monetary and financial reforms within the organization. The economic bubble caused an extra ordinary unemployment and the wage rates were not said to be increased in near future. The remuneration declining rate for CEOs was six per cent approximately. The exact figure turned to 10.4 million USD from 11.07 million USD. Here we define the workers, the average work force i nclude all the employees who work in an organization below top management (middle management, first line management and non-managerial employees i.e., clerical workers). The wage earning discrepancy between CEO and the general working employees was observed more in last decade. However the gender discrepancy was insignificant to be observed because females are emerging as top management seats in prestigious organizations. In Canada, the situation was considerably worse; the wage