By using ______s, we can find evidence that there is a relationship between the variables.
A. Pearson r
B. Cohen's d
C. chi-square test
D. expected frequency
Answer: C
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Social categorization leads people to
a. perceive group members more accurately. b. perceive others as individuals rather than group members. c. overestimate differences between groups. d. overestimate differences within groups.
The brain damage theory of ADHD, which arose in the 1940s and 1950s, was discarded because ____
a. no evidence of brain damage could be found using x-ray b. the psychological cause of ADHD was "found" in 1958 c. it could explain only a very small number of cases of ADHD d. brain damage was thought to cause mental retardation, not ADHD
All of the following naturally occurring chemical substances have been shown to play a role in memory EXCEPT
a. glutamate and acetylcholine. c. estrogen and testosterone. b. adrenaline and noradrenaline. d. dopamine and GABA.
The function of the neuron's axon is to _________
a) carry messages to other neurons b) regulate the neuron's life processes c) receive messages from neighboring neurons d) insulate against leakage of electrical impulses