Felicia is a participant in a study on stress reactions.Which of the following instruments would MOST likely be used to measure her muscle tension?
A) electromyograph
B) circadiometer
C) electroencephalograph
D) polygraph

Question

Quizplus · Accepted Answer

Electromyography is a technique used to measure muscle tension by detecting and recording the electrical signals produced by muscles. Therefore, it is the most suitable instrument for measuring Felicia's muscle tension in a stress reactions study. The other options (B, C, and D) are instruments that measure other physiological responses, such as changes in the circadian rhythm, brain activity, and changes in skin conductance, respectively.

Felicia Is a Participant in a Study on Stress Reactions