If the Test Statistic Falls in the Critical Region, We________

question 19

Multiple Choice

If the test statistic falls in the critical region, we________.

• A) reject the null and conclude that the research hypothesis is true.
• B) reject the null and conclude that there is strong - although indirect - support for the research hypothesis.
• C) accept the null.
• D) fail to reject the null.

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Definitions:

Regression Toward the Mean

A statistical phenomenon where extreme scores on a variable tend to be closer to the mean upon subsequent measurements.

One-group Pretest-posttest Design

An experimental design where a single group of participants is tested before and after an intervention to assess its effect.

Extreme Scores

Extreme scores refer to the most unusually high or low values in a data set, which can significantly influence statistical analyses and interpretations.

Selection Differences

Disparities between groups in an experimental study that can affect the outcome, often resulting from non-random assignment.