The study conducted aimed at finding the effect of caffeine intake on memory of selected group of individuals ages 18-21. The intake of caffeine is the independent variable for the said study, whereas, the performance of the respondents in a questionnaire is the dependent variable. …
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As the paper outlines people in same age groups can have varying degrees of intelligence, which in turn, affects their performance in short term memory recall. The researcher can also employ other methods of questionnaire instead of limiting the test answers to two options. Due to lack of details on variables of the study, the conclusion of the researcher has an arguably weak foundation. Even the employment of method lacks clarity. In the methodology, the respondents were simply divided into two groups, with the control group drinking five cups of coffee. The respondents’ diet and set of activities prior to the conduct of the study were not mentioned. In addition, the time when the study was conducted was also not given. The kind of film played for the respondents and the kind of questions asked were not specified. These are all important contributing factors in performance of the respondents on the set of tests given. The reliability of the result of a research depends on how well a researcher has been able to eliminate or lessen the effects of exogenous factors to the study. One of the most common and simplest forms of statistical test was used in the form of mean value test. The average of the total number of respondents who answered correctly were compared between each control and uncontrolled groups. However, there are other statistical tests that can also be utilized to exhibit the relationship between variables.
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This paper aims to provide information regarding the effects of caffeine on human body. Caffeine is a chemical compound most commonly associated with coffee even though substantial amounts of this chemical is present in other materials like tea, cold drinks and energy boosting drinks.
It was originally created by plants in order to ward off insects, but soon became something for humans through the developments of time. “For human consumption we concentrate the caffeine, either through extraction or add it directly. Human beings have been using caffeine in their diet since the Stone Age—chewing on seeds, roots, bark, and leaves of plants to acquire energy for their daily activities.
Caffeine, a mild stimulant present in roots and stems of a number of plant species, is a member of methylxanthine family. The substance is present in seeds and leaves of these plant species. The plant species are approximately 63 in number.
A vast majority of the memory retaining programs have conventionally catered for the needs of people with damaged brains. Nature has made memory multidimensional. Various forms of memory alter to different extents in different people as they age. The ability to recollect is adversely affected by the process of aging, though familiarity remains relatively unaffected.
One of the seven sins is blocking. There are times when we remember the first letter of a word but we can’t remember the entire word. This is usually known as the tip-of-the-tongue phenomenon. The sound of the word and the meaning of the word are located in different places in our brain (Begley).
The author of the paper conducted this experiment in a controlled environment which helped him to minimize the effects of the extraneous variable which are age and gender of the two groups of participants. He did this by random assignment to the two subjects to the experimental conditions.
As mentioned in the article, an average American consumes approximately 300mg of caffeine daily from sources such as tea, coffee and other energy as well as soft drinks. Intake of caffeine at such high levels by an entire
The theory of this study is whether once information is accessed by a person, it is easier to remember where the information is stored than the information itself.
The authors include a well organized and systematic review of
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