Confidence intervals drawn around group means in a complex design provide information regarding
A. the probable pattern of population means.
B. the null hypothesis.
C. interaction effects.
D. the statistical significance of any differences among population means.
A. the probable pattern of population means.
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According to the textbook, which percentage is probably the most accurate estimate of men in the U.S. who have extramarital affairs?
a. 70% b. 30% c. 10% d. 5%
Which of the following is NOT true of the etiology of schizophrenia?
a. There is strong evidence of hereditary factors based on the concordance rates in twin studies and schizophrenic parental correlations. b. Dopamine levels are low, explaining why marijuana consumption seems to help schizophrenics feel better. c. Structural brain deterioration as evidenced by enlarged brain ventricles could be either a cause or a consequence of schizophrenia. d. Predisposition for schizophrenia due to prenatal malnutrition or maternal infections.
What did Erikson propose was the main crisis of late adulthood?
a. trust vs. mistrust b. industry vs. inferiority c. ego identity vs. confusion d. ego integrity vs. despair
Trevor calls home from a payphone to ask his mother what the telephone number is for the baseball box office. He does not have paper so when his mother tells him the number, he starts rehearsing it in his head until he can end the call with her, hang-up the phone and dial the box office number. After his mom says, “The number is 555-2900” she asks him what time he will be home for dinner. When Trevor tries to call the baseball box office, he realizes he has already forgotten the number. Which of the following best explains why?
A. Trevor subconsciously did not want to buy the baseball tickets B. Telling his mother what time he would be home interfered with his ability to remember the telephone number. C. Numbers are the most difficult information to remember D. STM is very brief, lasting less than 10 seconds