Just as many people want to mistakenly compare the brain's "information processing" capability and speed to that of a computer, the speed of neural impulses is often erroneously compared to the ______.
A. speed of light
B. speed of sound
C. speed of electrical current
D. average reaction time for an average adult human
Answer: C
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Identify a true statement about the study conducted by Yan and Gaier (1994) on causal attributions for college success and failure in Asian and American college undergraduate and graduate students
a) Asian students believed that effort was more important for success than lack of effort was for failure. b) Asian students experienced lower levels of parental support. c) American students attributed academic achievement more often to ability. d) American students considered effort equally important for success or failure.
Individuals were asked to estimate the number of African countries that belonged to the United Nations, using either 10 or 65 as a starting base. The final estimates depended on the starting point that was provided. A starting point of 10 produced an average estimate of 25 countries, and a starting point of 65 produced an average estimate of 45 countries. The results of this study support the
view that people often: a. use anchoring and adjustment to make judgments b. use the availability heuristic when they are making judgments c. use the representativeness heuristic when they are making judgments d. work backward incorrectly when attempting to solve the problem
The term "complex trait" implies that
A) two genes alone interact to form complex behavioral patterns seen in psychological disorders. B) genes mutate under the influence of environmental factors resulting in complex behavioral patterns. C) the environment is more influential in the development of complex behaviors such as those seen in mental illness. D) given mental disorders or behavioral traits are influenced by many genes in interaction with environmental factors.
A vision scientist obtained a random sample of 56 individuals from a psychology department participant pool. From each participant, he obtained measures of attentional focus (x1), digit span (x2), list-learning efficiency (x3), motion aftereffect duration (x4), and time to complete a trail-making task (y). The sum of squares for y was 150. She submitted these results to a hierarchical regression with x1 and x3 entered on Step 1, then x2 and x4 added on Step 2. The sum of squares for the ? values was 36 on Step 1 and 42 on Step 2. Therefore, the change in explained variance (?R2) is ______.
a. .09 b. .05 c. .04 d. .28