Dr. B is conducting a study on the effects of alcohol on gen…
Dr. B is conducting a study on the effects of alcohol on genetically modified mice. To her dismay, she notices all of the mice, regardless of their genetic background, are extra sensitive to the sedative/hypnotic effects of alcohol (i.e., mice stay drunk for a long time). She realizes her experiment will likely produce null effects because the alcohol dose was too big and lead to scores that
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READ THE FOLLOWING SCENARIO TO ANSWER THE NEXT 2 QUESTIONS. Researchers asked high school students if they previously had musical training and then administered an intelligence (IQ) test to each student the same day. Students who had musical training scored higher on the intelligence test than did students who had no musical training. The researchers conclude that giving children musical training will cause an increase in intelligence.
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READ THE FOLLOWING SCENARIO TO ANSWER THE NEXT 2 QUESTIONS. Dr. Sparrow is a social psychologist who studies romantic relationships. Several researchers have found that there is a link between income and marital satisfaction (e.g., Dakin & Wampler, 2008). Dr. Sparrow is curious as to whether there is a causal link between the two variables, such that having a higher income causes higher levels of marital satisfaction. He is confident that he cannot reasonably or ethically manipulate people’s income level. He is also curious as to whether there is a causal link between these two variables or if two other variables (number of arguments and life satisfaction) can explain the relationship. He measures his three variables at one time with a survey in a sample of 124 married couples recruited from a local community center. Below are his results. DV: Marital Satisfaction Variable Beta (b) Significance (p) Income .69 .03 Number of arguments –.73 .01 Life satisfaction .13 .81
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