Instrumentation change occurs when
A) taking a pretest affects scores on the posttest independently of the effect of the independent variable.
B) the measure used to assess the dependent variable changes over time.
C) participants' scores on a measure change over time as a result of natural aging processes.
D) research participants who obtained extreme scores on a pretest have posttest scores that are closer to the mean.

Question

Quizplus · Accepted Answer

Instrumentation change refers to alterations in the measurement method or tool used to assess the dependent variable across different points in time. This can lead to inconsistencies in data collection and affect the reliability of the results.

Instrumentation Change Occurs When