In the study by Tucker-Drob and Harden (2012), higher cognitive ability at age 2 was correlated with parents providing more cognitive stimulation at age 4, taking into account the parents’ tendency to provide cognitive stimulation at age 2. This provides evidence for _____
a. passive gene–environment effects
b. evocative gene–environment effects
c. active gene–environment effects
d. a pure environmental influence of parents on children
Answer: B
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P(getting a job | knowing the manager) is the notation for the probability of
a. getting a job or knowing the manager. b. getting a job and knowing the manager. c. getting a job given that you know the manager. d. getting a job and not knowing what to give the manager.
Which of the following statements about the origin of the Big Five personality traits is
true? a. The Big Five traits were originally identified in China. b. Researchers used a lexical approach (investigating natural language) to identify the Big Five traits. c. Researchers explored famous literature across the world to identify traits that are frequently used to describe fictional characters. d. The Big Five traits are more valid in Eastern cultures than in Western cultures.
According to the results of the MIDUS survey, it is apparent that ______________ contribute to the health risks of low-income minority populations
a. low income, but not minority status b. minority status, but not low income c. both low income and minority status d. neither low income nor minority status
In a carefully controlled experiment, the only possible cause for any effect noted in the dependent variable is the
a. independent variable. b. extraneous variable. c. random assignment. d. random selection.