Communication deviance in the families of schizophrenics: a comment on the misuse of analysis of covariance

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Science  09 Sep 1977:
Vol. 197, Issue 4308, pp. 1096-1097
DOI: 10.1126/science.887943


Serious contradictions in recent research programs concerning communication anomalies in parents of schizophrenics have been generated by invalid statistical analyses. The method of analysis used, the analysis of covariance, can lead to erroneous conclusions in the context of these studies, and thus, other means must be sought for bringing these important research programs into common focus.