Exhibit 10-9: Identify the threats to internal validity illustrated in the examples below.
-Refer to Exhibit 10-9.Students falling below the 10th percentile on a reading achievement test later receive higher scores on a similar test; students above the 90th percentile receive lower scores on the second test administration.
A) experimental mortality
B) reactive effect of testing
C) statistical regression
D) maturation
E) instrumentation

Question

Quizplus · Accepted Answer

This example illustrates statistical regression because extreme scores are likely to move closer to the mean on subsequent tests due to chance factors.

Exhibit 10-9: Identify the Threats to Internal Validity Illustrated in the Examples