Which of the following terms refers to 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 accuracy of a study or research instrument in measuring what it is intended to measure. Reliability refers to the consistency of results or measurements over time, while predictability refers to the ability to predict future outcomes. Variability refers to the amount of diversity or differences within a particular group or population.

Which of the Following Terms Refers to the Extent to Which