The researcher claims that the Arousal and Group variables in this experiment are not relevant independent variables. State whether you agree or disagree with this statement, and explain your reasoning.
A researcher was interested in the effects of arousal and personality on individuals' GRE test performance. The personality variable he examined was individuals' level of introversion-extraversion. Based on questionnaire responses, each participant was classified as an "extravert" or an "introvert." The researcher manipulated arousal level by giving caffeine to participants prior to administering a practice GRE test. Participants were randomly assigned to a high-caffeine condition, a medium-caffeine condition, or the no-caffeine condition. All participants then completed a version of the quantitative portion of the GRE.
Suppose the researcher observed the following means for each group:
Disagree. The researcher makes this claim because the main effects of the variables are not statistically significant, but the means indicate that the Group and Arousal variables interact to influence scores on the test. Variables that produce an interaction effect are relevant variables.
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What conclusion emerges from studies on people who have survived traumatic experiences? a. People repress traumatic memories, which then affect their behavior unconsciously. b. Hypnosis is a highly effective way to recover apparently lost memories
c. Most people distort their memories of traumatic events to make them almost pleasant. d. People remember traumatic experiences, unless they were very young at the time.
Mexican settlers, who were religious Catholics with strict sexual rules, were considered promiscuous by the Protestants because ____
a. they had very permissive attitudes toward bisexual behaviors b. they did not consider it wrong to dance or show affection in public c. women had the right to divorce husbands d. they institutionalized homosexuality successfully
A theory of perception that holds that the way we see the world is determined strictly
by the features of things in the world is called a _____ approach. (a) bottom-up (b) top-down (c) hypnopompic (d) Gestalt
According to your textbook, the most frequent major illness to strike preschoolers is
a. AIDS. c. scarlet fever. b. smallpox. d. cancer.