Taking a Broader Perspective: the Problem of External Validity Researchers

question 2

Multiple Choice

Taking a Broader Perspective: The Problem of External Validity Researchers use aggregation over ____ to compensate for errors that may result from using an inadequate assessment instrument.

• A)measures
• B)situations
• C)stimuli
• D)trials

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Definitions:

Degrees of Freedom

The amount of separate parameters or data points that can be attributed to a statistical distribution.

Mean Squares

A statistic used in variance analysis that represents the average of squared deviations, often used in the context of ANOVA.

F Test Statistic

Used in analysis of variance (ANOVA) to compare the variances of two populations, based on sample data.

F-Test

A statistical test used to compare the variances of two populations and determine if they are significantly different.