What is assumed by the homogeneity of variance assumption?
a. The two samples have equal variances.
b. The two sample variances are not equal.
c. The two populations have equal variances.
d. The two population variances are not equal.
C
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Which of the following outcomes is associated with being an expert at something?
a. increased speed during problem solving b. a strict adherence to the rules involved in solving a problem c. increased difficulty explaining the steps involved in solving a problem d. decreased ability to solve similar problems
The early Christian Church believed that ____
a. demons could be released through the cathartic method b. many behaviors we call mental disorders were the result of supernatural forces c. science was the most effective way to understand abnormal human behavior d. abnormal behavior was primarily the result of biological abnormality
What was the researchers’ finding in a study comparing brain activity in murderers who had experienced neglect and abuse to murderers who had not experienced neglect or abuse (Raine, Stoddard, Bihrle & Buchsbaum, 1998)?
a. ?The brain activity of the neglected and abused murderers was quite similar to the nonabused murderers. b. ?The brain activity of the neglected and abused murderers was quite similar to the nonviolent control participants. c. ?The brain activity of the nonabused murderers was quite similar to the nonviolent control participants. d. ?The brain activity of the three groups—neglected and abused murderers, nonabused murderers, and nonviolent controls—was dissimilar.
Rick took a sugar pill thinking it was Tylenol and his headache subsided much more quickly than if he had taken no pill. The lessening of Rick's headache was probably due to:
A) natural improvement. B) a placebo. C) changes in blood sugar. D) reconstructive memory.