Reliability is:
A)a matter of whether a particular technique,applied repeatedly to the same object,would yield the same results each time
B)a matter of ensuring accuracy alone
C)a matter of ensuring that the measure measures what one thinks it should measure
D)a matter of ensuring precision alone
E)a matter of ensuring both accuracy and precision

Question

Quizplus · Accepted Answer

Reliability is the extent to which a measure yields consistent and stable results over time, and this is captured in option A. Options B, C, D, and E touch on different aspects of measurement quality but do not fully capture the essence of reliability. Accuracy (B) refers to how close the measure or observation is to the true value or the actual state or condition being studied, whereas precision (D) refers to the degree of consistency and repeatability of the measure or observation. Ensuring that the measure measures what one thinks it should measure (C) is known as validity, which is different from reliability. Finally, reliability is not only about accuracy or precision (E) but also about consistency and stability over time, as highlighted in option A.

Reliability Is