1 Name:________________________ Assignment: Identifying the research method In order to evaluate research projects, and understand their strengths...
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I need help identifying research methods. I am confused with the difference between correlational and


1 Name:________________________ Assignment: Identifying the research method In order to evaluate research projects, and understand their strengths and limitations, it is necessary to first understand which type of research method is being used. First, type your name in the space indicated above . Then classify each of the following research studies as experimental, correlational, or observational/qualitative. Simply type an E, C, or O in the space below each study to indicate type of study. Then type a brief explanation of your classification of the study (e.g., for E: “because the researcher controlled an IV and compared its effects in a treatment versus a control group”). This assignment will be graded on a 100-point scale. Ten points will be deducted for each wrong categorization of a study. Three points will be deducted if you correctly categorize a study but give an erroneous or inadequate explanation for your categorization. The assignment will be worth 3% of your overall grade in the course. 1. Cheryl Vance, an actuary at ValueLife Insurance Co., aims to determine whether the accident rate differs for two-door versus four-door versions of the same car model. She gathers National Highway Traffic Safety Administration (NHTSA) data on eight car models, each of which has both two- and four-door versions, and compares the accident rate for both versions. She finds that overall, the two-door versions have an accident rate that is 136% of that of the four-door versions. Research method: _________________ Explanation: 2. Gerald Mims wants to test the hypothesis that companies with larger advertising budgets will have larger market shares. He gathers data on the size of advertising budget and the market share for 142 medium-sized companies. He finds that companies with larger advertising budgets do in fact have larger market shares. Research method: _________________ Explanation:
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2 3. Melinda Feltner wants to test the hypothesis that small and medium-sized companies have higher turnover rates than do larger companies. She gathers 10 years of turnover data in three groups of companies: small, medium, and large (defined according to the number of employees). Feltner finds that turnover rate is highest in small companies, much lower in large companies, and in-between in medium companies. Research method: _________________ Explanation: 4. Mike Thomas hypothesizes that taller men will have higher incomes than will shorter men. He measures the height of 1200 men who have just obtained their business degrees at the University of Pittsburgh. Over the next five years, he tracks their incomes. Thomas finds that on average, taller men have higher incomes than do shorter men. Research method: _________________ Explanation: 5. Ron Fuller wants to test the hypothesis that storeowners will be more likely to scrutinize black customers who are exhibiting behavior that suggests shoplifting, compared to white customers who are exhibiting the same behavior. He trains five black and five white high school students to exhibit the same types of suspicious behavior, and sends them into 12 stores to act as trained. With hidden cameras, the storeowners’ scrutinizing behaviors are recorded. Fuller found that the storeowners were 1.72 times more likely to scrutinize the black customers as compared to the white customers who were exhibiting the same suspicious behaviors. Research method: _________________ Explanation:
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