Over time, human observers may become fatigued or change the standards on which observations are based. When this change in measurement occurs over time, a researcher might attribute it to _____.
A)history effects
B)regression toward the mean
C)testing effects
D)instrument decay

Question

Quizplus · Accepted Answer

Instrument decay refers to a change or degradation in the quality of measurement due to factors such as wear and tear, loss of sensitivity or bias. This can result in a change in measurement over time, even though the phenomena being measured remains stable.

Over Time, Human Observers May Become Fatigued or Change the Standards