Which of the following is most accurate regarding research on self-development in middle adulthood?
a. Self-acceptance, autonomy, and environmental mastery all increase during middle adulthood.
b. There is no evidence of self-development among middle-aged people living in collectivistic cultures.
c. Across cultures during middle adulthood, contentment with the self shows a small, but significant, decline as people confront a number of physiological changes.
d. Middle-aged adults' enhanced self-development makes them less likely to adapt to new situations or to be flexible in their goals.
Answer: A
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In support of the frequency and commonality of a midlife crisis, Daniel Levinson (1978) claimed to have identified what percentage of men he interviewed as having a midlife crisis?
a. 33% b. 50% c. 75% d. 98%
A researcher is interested in whether high school students who play sports have a higher or lower body mass index (BMI) than students in the general population. The researcher is unsure whether playing sports will decrease body mass (due to more calories burned) or increase body mass (due to more muscle mass). He compares their average BMI to that of students in the general population and finds
that zobt = +1.92 . This is a _____ test and the researcher should conclude _____. a. one-tailed; that students who are athletes have significantly higher BMIs. b. two-tailed; that students who are athletes have significantly higher BMIs. c. one-tailed: that students who are athletes do not have significantly higher BMIs. d. two-tailed: that students who are athletes do not have significantly higher BMIs.