Comment on Simonton's "Cross-sectional time-series experiments: Some suggested statistical analyses."

Suggests that the equation on which multiple time-series analysis is based is applicable to more than experimental and control groups that are identical prior to intervention as D. K. Simonton indicated (see record 1978-00178-001). The present article suggests that the equation is also applicable to cases in which comparable though not identical groups are investigated and in which nonequivalent groups are analyzed. (1 ref) (PsycINFO Database Record (c) 2010 APA, all rights reserved)