The research of Robert McCall, which evaluated the stability of IQ in a sample of 140 children, found that
a. IQ is stable over time.
b. about 50 percent of the sample had fluctuations in IQ that average 20 points.
c. about 50 percent of individuals had increases in IQ.
d. all individuals in the sample showed a decline in IQ.
B
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In terms of the traditional view of conditioning, research on conditioned taste aversion was surprising because
a. there was a long delay between CS and US. b. the dislike of a particular taste was operantly conditioned. c. conditioning occurred to all stimuli present when the food was consumed. d. the sense of taste seems to be relatively weak.
For a two-tailed hypothesis test evaluating the significance of a correlation, the null hypothesis states that the sample correlation is zero
Indicate whether the statement is true or false
When lying flat, babies can hold their heads up before they can lift their hips or legs. This illustrates the _____ direction of growth
a. cephalocaudal b. cephalodistal c. proximodistal d. proximocaudal
Muzafer Sherif’s Robber’s Cave experiment with boys at a summer camp showed that ____.?
a. ?cooperative contact can be fostered in situations where groups share superordinate goals b. ?prejudice is very difficult to create when people feel comfortable within their in-groups c. ?once prejudice and conflict are created, it is nearly impossible to eliminate it d. ?the best way to reduce conflict between two groups is to place them together in the same context and let them work it out