OVERVIEW What is Factor Analysis? (purpose) History Assumptions Steps Reliability Analysis Creating Composite Scores.
Reliability, the Properties of Random Errors, and Composite Scores.
Validity Does test measure what it says it does? Is the test useful? Can a test be reliable, but not valid? Can a test be valid, but not reliable?
CENTER FOR SOCIAL SERVICES RESEARCH School of Social Welfare, UC Berkeley The Child and Family Services Review Composite Scores: A “Great Start” Barbara.
College Admissions Testing Dublin City Schools Parent Program September 13, 2012.
