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Advantages and disadvantages of experimental design
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Article Summary Assignment Tianjiao Ma This research aims to investigate the testing effect with educationally relevant materials, and to determine whether taking tests helps to learn because of restudying the material. In the previous studies, subjects in the condition of testing performed better on a final test may be due to they being re-exposed to the material during the test. Thus, the research question is that in what extent can restudy explain the testing effect. The researchers predict that testing would facilitate superior retention on delayed tests than restudying the material. The conceptual independent variables in study 1 are testing and restudying. And the dependent variable is later retention. In study 2, the conceptual independent variables are repeated testing and repeated studying. The dependent variable is later retention. The experimental participants in each study are one hundred twenty and one hundred eighty Washington University undergraduates separately, ages 18 to 24, participated in partial fulfillment of course requirements. To measure the effects of testing and studying in two …show more content…
In study one, after 5 min, subjects who study the passage twice recall more than subjects who study once and take a recall test. Nevertheless, this pattern of results are reversed on the delayed tests 2 days and 1 week later. In study two, on the 5-min test, recall is correlated with repeated studying (the group SSSS recall best). However, on the 1-week test, recall was positive correlated with the number of tests given earlier (STTT recall best). Therefore, the results are consistent with my expectations. Subjects who being tested have better long-term retention, relative to restudying the material. Besides, the results indicate the testing effect are not simply because of re-exposing to the
American Psychological Association. (2001) Publication Manual of the American Psychological Association (5th ed). Washington, DC: McLaughlin & Reinking
Tests play a major role in a student’s academic career: they determine where the student goes to college, which AP classes the student will be able to take, and so on. Considering this information, it is vital to discover effective study methods that will enable students to retain the material longer and clearer. The article “Forget What You Know About Good Study Habits” by Benedict Carey presents the notion that efficacious studying must include diversity. Based upon years of scientific experiments, psychologists have been able to conclude that studying various material in various places and at spaced out intervals are better study habits than studying one subject in one sitting for a long period of consecutive time. The article is also centered
Schacter, D. L., Gilbert, D. T., & Wegner, D. M. (2010). Psychology. (2nd ed., p. 600). New York: Worth Pub.
Rationale and Variables: The Experiment that was conducted in class determined the affects of 'ecstasy' or MDMA on the participants' memory. In addition to testing for their ability to recall information it also looked at the number of false memory that were related to the actual word "slow" in the class study. In the experiment Dr. Earleywine used a list of words that were to be memorized, and recall in a given time. This study is related to another experiment conducted by A.C Parrott and J. Lasky. In their study they looked at the effects of "ecstasy" or MDMA on mood and cognition. They tested three groups: non- MDMA, novice-MDMA users, and regular MDMA users. They used different methods to test the three groups, included in the methods was word recall, which was also used in the class study by Dr. Earleywine. The result from that experiment showed that "ecstasy" or MDMA users did have memory problems. Another study was also conducted by A.C. Parrott, A. Leess, N.J Garnham M. Jones, and K. Wesnes, which was relate also to the other experiments. This experiment was conducted using three groups: non-MDMA, novice-MDMA and regular MDMA users. They used series of methods to conduct their study, and found their results similar to the earlier study. Analyzing the finding of the two studies, Dr. Earleywine decided to do a study with the mind set of making a connection between the rates of intrusions that participants who have used MDMA, compared with the rate of intrusions with participants, who did not use MDMA. The independent variables were the two groups MDMA users and non-MDMA users, and the dependent variables are the intrusions, and words recalled.
Davis, S. F., & Palladino, J. J. (2003). Psychology. (4th ed.). Upper Saddle River, NJ: Pearson Prentice Hall.
1In the article, The Critical Importance of Retrieval for Learning, Jeffery D. Karpicke and Henry L. Roediger III expound on the long standing assumptions regarding the effects of repeated studying and repeated testing on learning in order to improve long-term retention on learning material. Recently studies have shown that research can occur during testing, contradictory to the traditional beliefs that learning occurs while people study and encode material. Another purpose of this research and this article was to examine a students’ assessments of their own learning, after getting a set of material under repeated study or repeated testing. Finally, The Critical Importance of Retrieval for Learning, explained further the relationship of speed
Gall, S. B., Beins, B., & Feldman, A. (2001). The gale encyclopedia of psychology. (2nd ed., pp. 271-273). Detroit, MI: Gale Group.
Hockenbury, Don H., and Sandra E. Hockenbury. Psychology. 6th ed. New York, NY: Worth, 2013. Print.
Their first study was composed of 443 college students from two large universities in the Midwest. The participants were offered credit in their introductory psychology classes in return for their participation. They completed a questionnaire as part of their participation. 52% of the participants were men, and 48% were women. 94% were between the ages of 18 and 25. Only the 404 students that had complete data were used to set up the model that the experimenters formed. The second study tried to show any coincidence between the findings of American students and international ones.
Qualitative research is subjective and pieces together a person’s experiences, interactions, beliefs, attitudes, and behavior to gain insight into the action and choices of human behavior, which contributes to the development of evidence-based interventions and guidelines (Grove, Gray, & Burns, 2015). In the article by Gaydos et al. (2015) regarding infant safe sleep recommendations, a qualitative study was conducted to gain knowledge of how providers counsel low-income, African American mothers on sudden infant death syndrome (SIDS) prevention and how well they understand and adhere to the safe sleep recommendations. The purpose of this paper is to discuss this qualitative research study that will:
The problem with reliability assessed via test-retest is that it requires the same participants at different times; which makes it difficult to replicate (Kline, 2005). For example, they may be fewer participants. In addition, the longer the delay between tests the greater the possibility of variation in results; as well as, the participants have an opportunity to learn the test the second time around and can create different results (Kline, 2005). Lastly, it is very costly to run consecutive test (Kline, 2005).
In the research article “Test-Enhanced Learning” by Henry L. Roediger III, and Jeffrey D. Karpicke, the researchers set out to determine whether or not taking memory tests would improve retention for people over time. They hypothesized that performance where the participants were immediately tested would increase with the number chances to study the material. They also hypothesized that taking tests in a short time after studying would lead to greater retention on tests taken later compared to repeatedly studying the passages. There were two experiments to test their hypothesis. In the first experiment the participants in the experiments studied short passages on basic science. In Experiment 1, they either took a test on the material or studied
Weiner, I. Healy, A. Freedheim, D. Proctor,R.W., Schinka,J.A. (2003) Handbook of Psychology: Experimental psychology,18, pp 500
The resulting participants were 100 adults aged 18 through 81. Fifty-three Caucasians, 17 Hispanics, 15 African Americans, 9 Pacific Islanders, 5 Asian, and 1 American Indian made up our participants. Fifty adults were randomly chosen to be in the control group and the other fifty adults were in the experimental group. The mean age of the control group was 50 years old and the mean age of the experimental group was 49 years old. 50% of the participants were female and 50% were male in each group.
Qualitative research, as a form of inquiry, is applied, mostly, in social sciences. It is a way of getting knowledge, a way to understand behaves, standpoint views, motivations and opinions. Qualitative research aims to contribute to the development of a certain area, commonly, ascertaining specific social needs, and influencing policy makers, through the translation of individual needs, marginalised and vulnerable groups, into collective voices. Qualitative research may be perceived as a journey, a process, that impacts on the researcher and on the participants. To better understand it, I shall provide a brief presentation of qualitative research per se - conducted through the feminist lens. In what follows, I consider the researcher