what is factor analysis used for? if scale scores are bad, why use factor analysis how are factor scores calculated when using efa how to do factor analysis in regression analysis what is the relationship between factor analysis and factor analysis what is the relationship between factor analysis and regression testing? what is the difference between factor analysis and reliability analysis when to compare factors to scales what is the relationship between efa and reliability how can i test scale reliability what is the relationship between factor analysis and reliability what is factor reliability analysis and scale reliability testing what is factor analysis what is the difference between factor and factor testing in sociology can factor analysis and cfa work together what is the relationship between factor scores and scales can we use derived factors in factor analysis what is the relationship between factor analysis of scale and reliability which factor is used in a factor analysis can factor and reliability be used together