Answer:
b. factor analysis
Step-by-step explanation:
Factor analysis: In psychology, the term factor analysis refers to several statistical course of action which is designed to describe various kind of unnoticeable constructs that is being needed to determine the pattern of correlations in various measures. This is one of the statistical techniques being used to determine whether the items of a survey reflect abstract variables.
It can be used to reduce or transform various variables into a few factors.
Type:
1. Exploratory factor analysis.
2. Confirmatory factor analysis.
In the question above, psychologists would use the factor analysis technique.