For a Study Analyzing the Difference Between Test Scores Before

question 112

Multiple Choice

For a study analyzing the difference between test scores before and after a treatment was applied, which statistic would be most appropriate for this study?

• A) z-test for one mean
• B) t-test for one mean
• C) t-test for independent means
• D) t-test for dependent means

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Definitions:

Dependent Variable

The variable in an experiment that is observed and measured to assess the effects of the independent variable, essentially the outcome of interest.

Scientific Method

A systematic, empirical approach to research, characterized by observation, hypothesis testing, experimentation, and conclusion.

Self-correcting

Capable of making necessary adjustments or corrections on one's own to maintain accuracy or functionality.

Analysis

A detailed examination of the elements or structure of something, typically as a basis for discussion or interpretation.