Suppose a researcher intended to study people's levels of happiness by monitoring how often they smile or laugh when watching a movie.If this measurement truly indicates level of happiness, psychologists would say that the data are
A)systematic.
B)reliable.
C)valid.
D)event related.

Question

Quizplus · Accepted Answer

Validity refers to the accuracy of a measure in assessing what it is intended to measure. In this case, the researcher intends to measure people's levels of happiness, and if smiling or laughing truly indicates happiness, then this measurement is valid. Reliability refers to the consistency of a measure, and systematic and event-related are not relevant concepts to this question.

Suppose a Researcher Intended to Study People's Levels of Happiness