The extent to which the frequency of smiling really defines the property called happiness is an issue of measurement:
A)reliability.
B)validity.
C)power.
D)instrumentation.

Question

Quizplus · Accepted Answer

The issue of whether the frequency of smiling actually represents the construct of happiness is a question of validity. Validity refers to the degree to which a measurement actually measures what it claims to be measuring. In this case, if smiling frequency is being used as an indicator of happiness, then the validity of that measurement is in question. Reliability (A) refers to the consistency or stability of a measurement, power (C) refers to the ability of a study to detect an effect or difference, and instrumentation (D) refers to the tools or procedures used to collect data.

The Extent to Which the Frequency of Smiling Really Defines