factor analysis

noun2

1. •
   A statistical method used to describe variability among observed correlated variables in terms of one or more unobserved variables (called factors).

   • Factor analysis is a generic term that we use to describe a number of methods designed to analyze interrelationships within a set of variables or objects. — 1993
2. •
   A statistical study performed using the method.

   • Separate exploratory factor analyses using an oblique rotation were conducted on the item sets measuring task values, task difficulty perceptions, and ability perceptions. — 1999