References
- Many of the ideas expressed in this section first appeared in Weinstein, Art. 1994 . Market Segmentation: Using Demographics, Psychographics, and Other Niche Marketing Techniques to Predict Customer Behavior , Revised Edition , 232 – 234 . Chicago : Ir-win Professional Publishing .
- Donoghue , John R. 1995 . “Univariate Screening Measures for Cluster Analysis,” . Multivariate Behavioral Research , 30 ( 3 ) : 385 – 427 .