Participant scores can vary between two administrations of a measurements because of ______ and not be a reflection of the scale itself.
A) bias
B) random error
C) validity issues
D) error of central tendency

Question

Quizplus · Accepted Answer

Random error refers to the natural variation and inconsistency that can occur in a measurement, which can cause scores to differ between two administrations even if the scale itself is valid and reliable. Bias refers to systematic errors that consistently affect scores in a particular direction, validity issues refer to problems with whether the scale is measuring what it is intended to measure, and error of central tendency refers to the tendency for scores to cluster around the mean, which can affect the interpretation of results but does not necessarily cause score variation between administrations.

Participant Scores Can Vary Between Two Administrations of a Measurements