On a newly developed IQ test, if an individual scores at the 110 level on the first half of the test and 150 on the second half of the test, what does this test appear to lack?
A. reliability
B. standardization
C. predictive validity
D. appropriate norms
Answer: A
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Cynthia Bulik led the most powerful genome-wide association study of anorexia nervosa ever conducted. Which of the following most accurately reflects the study's results?
A. It identified a specific location for anorexia nervosa on chromosome 21. B. There are strong correlations between anorexia nervosa, depression, obsessive-compulsive disorder, and extroversion. C. The correlation between anorexia nervosa and genes is weaker than expected. D. Strong correlations exist between anorexia nervosa and BMI, high-density lipoprotein cholesterol, insulin, and glucose.
A memory storage system that contains memory of impressions for a very brief time (a few seconds or less) is called
a. short-term memory. b. limited memory. c. sensory memory. d. temporary memory. e. echoic memory.
Assume that the scores on a test of visual memory are normally distributed. Assume that the mean score is 10 and the standard error is 0.5 . About 95% will fall in the range ____
a. 9.5 to 10.5 b. 9.0 to 11.0 c. 8.5 to 11.5 d. 8.0 to 12.0
Drives are:
a. unlearned, characteristic patterns of responding that are controlled by specific triggering stimuli b. complex psychological events that are often associated with the initiation and direction of behavior c. psychological states that arise in response to an internal physiological need d. learned patterns of responding that occur reflexively in the presence of specific stimuli