Seeing stability in a stable-baseline design can help rule out which of the following threats to internal validity?
A)Regression to the mean
B)Placebo effects
C)Attrition
D)Observer bias

Question

Quizplus · Accepted Answer

Stability in a stable-baseline design refers to a consistent baseline measurement over time. If stability is observed, it can rule out the threat of regression to the mean, which is the tendency for extreme scores to move toward the average upon repeated testing. Therefore, options B, C, and D are incorrect as they are not related to the stability in a stable-baseline design.

Seeing Stability in a Stable-Baseline Design Can Help Rule Out