A set of X and Y scores has a regression equation with a slope of b = 4 . If the mean for the X values is MX = 2 and the mean for the Y values is MY = 6, what is the Y-intercept value for the regression equation?
a. –2 c. 4
b. –22 d. –4
A
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Leonard Heston conducted an adoption study of the possible causes of schizophrenia. What was the major finding in his study?
a. There was no evidence of a genetic influence on schizophrenia. b. Adopted individuals had higher rates of schizophrenia regardless of the mental health status of their parents. c. An individual's childhood environment has a much greater impact on the incidence of schizophrenia than do genetic factors. d. Adopted children whose birth mothers were schizophrenic developed schizophrenia at a higher rate than did children born to normal mothers.
Unlike adults, children with specific phobias ____
a. avoid the feared stimuli b. do not recognize that their fears are extreme and unreasonable c. experience physiological arousal when presented with the feared stimuli d. are more easily treated
Although Margo thought the singer did a good job, she did not think the performance rated a standing ovation. Nevertheless, she stood up when her friends did. Margo stood up due to
a. cognitive dissonance. b. conviction. c. the expectation of how others would evaluate her. d. the long-term consequences of her actions.
True or False: SPSS calculates Cohen’s d.
a. True b. False