The hypothesis predicting that differences exist between the groups being compared is to the hypothesis predicting that no differences exist between the groups being compared as _____ hypothesis is to _____ hypothesis
a. null; alternative
b. alternative; null
c. one-tailed; two-tailed
d. two-tailed; one-tailed
b
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Which pair of variables should produce a negative relationship?
a. square footage of a house and price of a house b. number of years of schooling and annual income c. age of child and verbal skill level d. speed of running and time to complete a race
Psychological models of mental illness emphasize the contribution of
a. historical, sexual, and physical factors. b. fear, anxiety, and stress. c. cognitive, behavioral, social learning, developmental, and biological factors. d. the family, the individual, and society. e. the unconscious, our senses, and our pre-existing beliefs.
Eustress is the most harmful type of stress
Indicate whether the statement is true or false.
Researchers asked participants to keep journals of their daily moods and of other variables, such as the weather and how much sleep they got the night before. When asked, many participants reported the amount of sleep the night before was correlated with
When information recorded in the journals was subjected to more systematic statistical analysis, it was found that amount of sleep was not related to participants' self-reported moods. This is most likely because participants a. relied on causal theories about the relation between mood and sleep. b. underreported the amount of sleep they actually got. c. were distracted when they wrote in their journals. d. were in a bad mood from having to keep the journal.