What is the change in the charge of a neuron called?
a) resting potential
b) action potential
c) myelination signal
d) transmission impulse
ANS: b
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A researcher obtains a Pearson correlation of r = 0.60 for a sample of n = 6 pairs of X and Y scores. If the researcher tests the significance of the correlation, what value will be obtained for the t statistic?
a. 0.6/0.16 = 3.75 c. 0/6/0.8 = 0.77 b. 0.6/0.4 = 1.50 d. 0.6/1.0 = 0.6
Research has shown that clinical experience increases only slightly the accuracy of one's clinical predictions. ALL BUT WHICH of the following did the textbook offer as an explanation for this finding?
a. The measures upon which mental health professionals base their predictions do not have high validity, so they are no more valid in experienced hands than in inexperienced ones. b. Once clinicians obtain job security, any enhanced accuracy from their experience is canceled out by a corresponding decrease in effort. c. Clinicians often receive no feedback about their predictions, so they cannot learn from their experience. d. Clinicians are biased toward remembering their accurate predictions and forgetting their inaccurate ones.
The Rachlin/Castro/Bandura debate discussed in the text illustrates the complexity involved in self-administered contingencies. Despite their differences, they all agreed that:
a. self-rewarding works by increasing accurate self-monitoring b. contingent consequences work. c. consequences are evaluated according to usual social standards d. self-punishment operates primarily by providing information.
Every time you have a cold, you take a cold remedy to get rid of the symptoms. You are taking the medicine because of
a. response cost. b. extinction. c. positive reinforcement. d. negative reinforcement.