Confirmation of Hypotheses

Until about a decade or so ago, the type of factor analysis we've been describing was also used in attempts to confirm hypotheses, especially when it was used in developing scales. Since then, a more powerful variant, called confirmatory factor analysis (CFA), has become popular, and the more "traditional" form we discussed in this chapter is now called exploratory factor analysis (EFA). We'll describe CFA in Chapter 17, when we talk about path analysis and structural equation modeling. For now, suffice it to say that if you want to use EFA to confirm hypotheses, don't!

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