Professor Jones observed that students giving class reports are more likely to stutter and perspire if more of their course grade is based on their report. He attributes this to "anxiety." In this example "anxiety" is a
A)third variable.
B)theoretical concept.
C)classificatory variable.
D)confound.

Question

Quizplus · Accepted Answer

Anxiety is a theoretical concept, meaning it is not directly observable but is instead inferred from observed behaviors such as stuttering and perspiring.

Professor Jones Observed That Students Giving Class Reports Are More