Examlex
When the median of a data set is 110 and the mean is 127, the percentile associated with the mean must be higher than 50 percent.
Gold Star
A symbol of commendation or recognition for outstanding achievement or quality.
Primary Reinforcer
A stimulus that satisfies basic survival needs and is inherently rewarding, such as food, water, or shelter, which does not require learning to be effective.
Secondary Reinforcer
A conditioned reinforcer that gains its reinforcing power through its association with a primary reinforcer; examples include money, grades, or tokens.
Variable Interval
A schedule of reinforcement where a response is rewarded after an unpredictable amount of time has passed, making it a powerful tool in the study of operant conditioning.
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