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PSYCH101 Psychology
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PSYCH101 Psychology
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Course Code: PSYCH101
University: Saylor Academy
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Country: United States
Questions:
1.Tom Rogers wanted to test a new “singalong” method to teach math to fourth graders (e.g., “I love to multiply” to the tune of “God Bless America”). He used the singalong method in his first period class. His sixth period students continued solving math problems with the old method. At the end of the term, Mr. Rogers found that the first period class scored significantly lower than the sixth period class on a mathematics achievement test. He concluded that the singalong method was a total failure.
2.An airport administrator investigated the attention spans of air traffic controllers to determine how many incoming flights the average controller can coordinate at the same time. Each randomly selected controller was tested, without his or her knowledge, by a computer program that fed false flight information to a computer terminal. The controller first “received” information from one plane, and by the end of an hour the controller was coordinating 10 planes simultaneously. The administrator analyzed the errors collected by the computer program. The analysis revealed that the maximum number of planes a controller could handle without making potentially fatal errors was six planes. Also, no errors occurred when only one to three planes were incoming. He concluded that a controller should never coordinate more than six incoming flights.
3.A drug company developed a new medication to control the manic phase of bipolar manic-depression. The firm hired a hospital psychiatrist to test the effectiveness of the drug. He identified a group of manic-depressive patients and randomly assigned them to a drug or placebo group. Nurse Ratched was told to administer the drug and Nurse Johnson was told to administer the placebo. Each nurse made daily observations of her patients during treatment. A month later the observations were compared. In general, patients in the drug group had behaved more “normally” than patients in the placebo group. The drug company publicized its product’s effectiveness.
4.Dr. Goodrich wanted to demonstrate that his tires were better than those of his competitor, Dr. Goodyear. From car registration and leasing records, he found 40 salespeople who drove the same model of automobile approximately the same number of miles per week. Anonymously, Dr. Goodrich hired an independent research assistant, who was unaware of the purpose of the study, to randomly assign to 20 of the salespeople a new set of unmarked Goodrich tires, and to the other 20 a new set of unmarked Goodyear tires of the same price and quality. After six months and an average of 15,000 miles traveled by both groups, the assistant arranged for the salespeople to exchange tires. After another six months, and similar mileage, the assistant measured the amount of tread wear and reported that the Goodrich tires had actually worn more than the Goodyear tires.
5.An investigator was interested in studying the effect of taking a course in child development upon attitudes toward childrearing. At the end of the semester, the researcher distributed a questionnaire to students who had taken the child development course. Questionnaires were also given to an equal number of students who had not taken the course. The students who had taken the child development course had different attitudes from the students who had not taken the course (e.g., they had more positive attitudes about having large families).
Answers:
1.Tom Ragers experiment about testing a new singaalong method to teach math to his fourth graders was a complete failure. The experiment goes on to show that children need a lot more than just music to learn math. While there are many ways to connect math and music, Mr. Ragers should have developed other sensory ways to teach math and not just rely on the singa-along method to teach math to his students.
2.The investigation on the attention span of the air traffic controllers shows them to be coordinating ten planes at the same time. An analysis by the computer program shows that they can coordinate only six planes without making any fatal errors. Based on the investigation, the airport administrations should ensure that the traffic controllers are not burdened with coordinating more than six planes so that there is no scope of making any errors.
3.Testing the effectiveness of a new drug for Bipolar-manic depression finds it to be effective. Thus, it is no surprise to find the company publicizing the effectiveness of the drug. However, it should be aware of the post-marketing surveillance introduced by the Food and Drug Administration of the USA for post-marketing of newer drugs. There are several surveillance databanks where one can get information about safety, potential business, and dosage of the manufacturer’s drugs.
4.The independent research on Goodrich and Goodyear tires shows Goodrich tires had worn out more when compared to the Goodyear tires after six months of usage and an average of 15,000 miles of travel. The above results show that Dr. Goodrich needs to improve the quality of his tires if he wants to prove that his tires are better than his competitor. He should improve not only the quality but also his marketing and sales to reach out to customers.
5.The students who enrolled for the child development course and answered the questionnaire show a positive attitude towards larger families. The results of the study show that it is indeed beneficial to make young students aware of child development. The schools can introduce a child development course in their curriculum to bring about the positive changes among their students which can be good for the students, their families, and the community.
Bibliography
Krishnan, Eswar and Fries, James F.,’ Measuring effectiveness of drugs in observational databanks: promises and perils’, (2004) 6(2), Arthritis research & therapy 41-4.
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