Researchers use _________________ to determine whether the difference between groups is statistically significant
A) correlation coefficients
B) descriptive statistics
C) hypothesis testing
D) vector analysis
Answer: C
Rationale: When researchers determine the significance of their results, they use a set of procedures called a hypothesis test, which measures the difference between the means of the two groups relative to the variability one would expect due to chance in the means (which is calculated based on the standard deviation and the size of the sample). The results of a hypothesis test will tell us if the two groups are significantly different (different because of the independent variable) with a certain degree of probability.
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The technique for treating mental patients that was pioneered by Egas Moniz was:
A) ECS therapy. B) the lobotomy. C) the use of drugs. D) the cingulotomy
Connie Kristiansen and her associates have expressed concern over the research on false memories because:
a) She feels that abused women will remain silent because of the prevailing doubt about the validity of recovered memories b) She thinks that it is not necessary to objectively validate the woman's reports of abuse before treating her c) She has tried very hard to generate research that demonstrates the validity of women's reports of abuse but her research has not been recognized in the field d) She believes that abused women will not recover from their trauma because of the publicity about false memory research