According to the chapter You're Driving Me Crazy, a strong correlation between two variables indicates
(a) cause and effect
(b) a strong relationship
(c) a weak relationship
(d) a negative correlation coefficient
B
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Which of the following statements about breast cancer is correct?
a. At present, the standard treatment for breast cancer is complete removal of the breast. b. Women with breast cancer are much more likely to survive if they have complete removal of the breast than if they have a lumpectomy. c. Women who have had breast surgery consistently report negative emotional responses. d. Over half of Black women who have had breast surgery report being in very good spirits, about 2 months after surgery.
When deciding between playing a lottery with an 80% chance of winning $4,000 or receiving $3,000 outright, most people choose the _____ because of the _____.
A) lottery; preference for variable rewards B) lottery; rational choice theory C) $3,000; sunk-cost fallacy D) $3,000; certainty effect
According to the DSM-5, personality disorders are usually apparent in
A. Periods of high stress B. Adolescence or early adulthood C. Infancy or early childhood D. Major development transitions
A partial correlation is
a. based on only a portion of a sample b. generally larger than the Pearson correlation c. the correlation between two variables with the influence of other variables removed d. a correlation with error variance removed e. used when variables are dichotomous rather than continuous