title: Some statistics for analysing change in psychiatric research.
abstract: Variations in psychological features, including the emergence of, or recovery from, psychiatric disorder, typically involve a long-term process. Consequently, most investigations of these processes will assess the individual or group on a number of occasions, creating complexities in any accompanying statistical analysis. In this paper an approach to analysing such data is introduced, including an extension of the t-test and the analysis of variance.
authors.forename: D
authors.initials: D
authors.lastname: Hadzi-Pavlovic
mesh_terms: D003866:Depressive Disorder / Q000523:psychology; D005500:Follow-Up Studies; D006801:Humans; D001523:Mental Disorders / Q000523:psychology* / Q000628:therapy; D011581:Psychological Tests; D011594:Psychometrics; D012106:Research