Confirmatory factor analysis (CFA) is an under-used and often misunderstood statistical tool. CFA provides useful information about scale dimensionality and validity. This paper offers a brief and accessible introduction to the role of CFA in communication research. Some common issues with CFA including dimensionality and model fit are addressed. More frequent and informed use of CFA would likely improve the quality of measurement in quantitative communication research. © 2005, Copyright Eastern Communication Association.