The higher the correlation between X and Y, then
a. the higher the probability of having isolated the causal factor
b. the higher the probability of having sampled from a single population
c. the higher the probability of inflating the alpha error
d. the more accurate the resulting predictions
d
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Suppose that when several students raise their hands in class, the professor calls on one at random. Thus, the more often you raise your hand, the more your chance of being called, but you can never be sure when that will be. Which schedule of reinforcement is this?
a. Fixed-interval b. Variable-interval c. Fixed-ratio d. Variable-ratio
Which approach to categorization can more easily take into account atypical cases such as flightless birds?
a. Exemplar b. Prototype c. Definitional d. Network
In psychophysical experiments, it is possible to generate the ROC function by changing the participant's decision criterion from conservative to liberal. The experimenter can change the decision criterion by
a. changing the probability that a stimulus rather than noise only will be presented. b. changing the payoffs for hits and false alarms. c. changing the proportion of trials on which a target is presented d. all of these.
A slogan for Vygotsky's "zone of proximal development" would be,
a. "Let innate knowledge blossom from within you.". b. "Don't intrude on the child's personal space.". c. "Let the child discover on her own.". d. "Being helped is best.".