__________is the extent to which a study or research instrument accurately measures what it is supposed to measure.
A) Validity
B) Reliability
C) Predictability
D) Variability

Question

Quizplus · Accepted Answer

Validity refers to the extent to which a study or research instrument accurately measures what it is supposed to measure. Reliability refers to the consistency of results when using the same instrument or measure to assess the same phenomenon. Predictability and variability are not directly related to the accuracy or consistency of a measure.

__________Is the Extent to Which a Study or Research Instrument