George creates a new happiness scale and gives it to a sample of college students twice. Scores were consistent over time, which means that George's scale is
A) valid.
B) reliable.
C) negatively correlated.
D) confounded.

Question

Quizplus · Accepted Answer

Reliability refers to the consistency of a measure over time or across different administrations. In this case, the scores on George's happiness scale were consistent over time, which means that the scale is reliable.

George Creates a New Happiness Scale and Gives It to a Sample