A researcher administers 10 measures of stress and anxiety to a sample of evaluators working for state departments of education. What statistical technique can the researcher use to determine whether the information in these 10 measures can be reduced to a smaller number of variables?

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Factor analysis is a statistical method used to describe variability among observed, correlated variables in terms of a potentially lower number of unobserved variables called factors. It is used to identify the underlying relationships between measured variables and to reduce data to a smaller set of summary variables, making it the appropriate technique for the scenario described.

A Researcher Administers 10 Measures of Stress and Anxiety to a Sample