What is the most likely impact of low statistical power in a study?
a) Experimenters are more likely to reject the null hypothesis.
b) Experimenters are more likely to accept the null hypothesis.
c) Experimenters are likely to incorrectly generalize the results.
d) Experimenters are more likely to find statistical significance between groups.
Correct Answer: b
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Cancers such as breast, colon, endometrial, pancreatic, and gallbladder cancers have been linked to:
a. A Mediterranean diet b. obesity c. individuals who have lost over 20 pounds in one year d. individuals with a lower body mass index
Regarding the normal curve, which of the following statements is FALSE?
a. Relationships between the standard deviation and the normal curve do not change. b. A normal curve represents the distribution of chance events. c. A normal curve has a low number of scores near the middle of the distribution. d. A normal curve is applicable to a wide range of psychological variables and traits.
Systems theorists view anorexia nervosa as ______
a. a type of weight phobia b. an effort to remain a prepubescent child c. a method used by the anorexic for diverting family attention away from marital tensions and family conflict onto themselves d. a method for punishing overdemanding, manipulative parents
Heuristics are useful mental shortcuts but they also have drawbacks. What could be considered one disadvantage of using the availability heuristic?
a. People may give less weight to higher probability events compared with more vivid or scarier lower probability events. b. Using the availability heuristic results in greater use of the base rate. c. When using the availability heuristic people do not consider information about an individual's personality d. The availability heuristic takes a great deal of controlled processing.