James' Study Was Conducted on the Influence of Study Habits

question 18

Multiple Choice

James' study was conducted on the influence of study habits on math performance.James tracks the average number of correct responses that participants have before and after being exposed to different study habits.James is assessing his cognitive measure with________ .

• A)reaction time.
• B)frequency of responses.
• C)degree of response.
• D)percent correct.

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Definitions:

Standard Deviation

A measure of the amount of variation or dispersion of a set of values; a low standard deviation means the values are close to the mean, while a high standard deviation means the values are dispersed over a wider range.

Standard Normal Random Variable

A random variable with a mean of zero and a variance of one, following the standard normal distribution.

Area

The measure of the extent of a two-dimensional surface or shape, expressed in square units.

Z

Often refers to a Z-score in statistics, representing the number of standard deviations a data point is from the mean.