Which of the following is a possible null hypothesis for a correlational study?
A. ?xy? 0
B. ?xy> 0
C. ?xy< 0
D. rxy = 0
Answer: A
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In the study by Caspi et al. (2003) discussed in the text, genetic testing of males who were followed from childhood into adulthood revealed that individuals with a genetic vulnerability in the serotonin transporter gene (the s/s genotype) were __________.
A. more likely than individuals without such a vulnerability (the l/l genotype) to be depressed as adults, regardless of the level of maltreatment in childhood B. more likely than individuals without such a vulnerability (the l/l genotype) to be depressed as adults, but only when child maltreatment was likely to have occurred C. equally likely to be depressed in adulthood as individuals without such a vulnerability (the l/l genotype) when both had a history of severe maltreatment D. depressed from childhood through adulthood
Which of the following statements is true of Maslow's views on human nature?
a. He denied the existence of evil in humans. c. He believed that personality is determined solely by genetic factors. b. He argued that human nature is basically good, decent, and kind. d. He argued that people are victims of early childhood experiences.
Which of the following is the most complex and beneficial way to study change over time?
a cross-sequential design a cross-sectional design a meta-sequential design a longitudinal design
In developing countries, which of the following causes a considerably lower average height and weight during early childhood?
Lower nutrition and higher likelihood of childhood diseases || Higher nutrition and a lower likelihood of childhood diseases || Lower parental care and the lack of folic acid || Higher parental care and an abundance of folic acid || || ||