A researcher is interested in the level of consumers' understanding of product nutrition labels.He is interested in how the amount of time spent looking at the label influences understanding,so he's using a device that controls the amount of time a subject is exposed to the label.This device is called a:
A)pupilometer
B)psychgalvanometer
C)tachistoscope
D)rotoscope

Question

Quizplus · Accepted Answer

A tachistoscope is a device that controls the amount of time a subject is exposed to a visual stimulus. In this case, the product nutrition label is the visual stimulus that the researcher wants to study. The tachistoscope can be used to ensure that each subject is exposed to the label for the same amount of time, which will help to control for any differences in understanding due to varying exposure times. The other devices listed (pupilometer, psychgalvanometer, rotoscope) are used for measuring different aspects of physiological or psychological responses and are not directly applicable to this study.

A Researcher Is Interested in the Level of Consumers' Understanding