School-based smoking prevention programs have used
a. anti-smoking art contests.
b. poster and T-shirt giveaways.
c. questions for students to ask their parents.
d. all of these.
D
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The question, "Is the test any good as a measure of the characteristics it purports to measure?," is
a. a psychometric question. b. based on ethical and social values. c. a moral issue. d. a legal issue.
Victor is fearful of approaching new situations and often appears inhibited. Victor's mother reports that she struggles with similar difficulties and he may have inherited it from her. This is an example of ____
a. emotional influences b. biological influences c. cognitive influences d. behavioral influences
Mothers of young children of the same age perceive taller boys as more aggressive
Indicate whether the statement is true or false
Which of the following is true of genes and alleles?
A. Alleles only exist on sex chromosomes, whereas genes exist on all chromosomes. B. Some genes have no alleles. C. There are only two possible alleles for each gene. D. There may be hundreds of possible alleles for some genes.