Examlex
By the age of _____, children are convinced certain toys are appropriate for one gender but not the other.
Standard Deviation
A statistical measure that quantifies the variation or dispersion of a set of data points around their mean average.
Fixed-Interval
In the context of psychological reinforcement, it refers to a schedule where rewards are given after a fixed time period has elapsed, assuming a correct response is made.
Random-Interval
A timing schedule in operant conditioning where reinforcements are given at unpredictable intervals.
Variability
The extent to which data points in a statistical distribution or data set diverge from the average value.
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