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ERIC Number: EJ829215
Record Type: Journal
Publication Date: 2007-Dec
Pages: 5
Abstractor: ERIC
Reference Count: 12
ISSN: ISSN-1536-6367
Assumptions and Challenges of an Idiographic-Nomothetic Approach to Measurement: A Comment on Nesselroade, Gerstorf, Hardy and Ram
West, Stephen G.; Ryu, Ehri
Measurement: Interdisciplinary Research and Perspectives, v5 n4 p259-263 Dec 2007
Nomothetic and idiographic approaches to research have long been in tension. John Nesselroade et al. have been at the forefront of a constructive rapprochement between these traditions. Heretofore their efforts have assumed a common measurement structure across persons. They have primarily focused on modeling relationships within persons, which then permits between person nomothetic examinations of the extent to which these relationships characterize all or some persons. Nesselroade, Gestorf, Hardy, and Ram (this issue) extend these efforts to the measurement level. They develop separate within person factor analysis models for each individual that attempt to estimate similar constructs, but permit variation in factor loadings (even=0) for each individual. The relations between constructs are then integrated at the nomothetic level by assuming that a single common relation between each pair of factors characterizes all persons. This commentary highlights some of the assumptions underlying this approach and the challenges it faces.
Psychology Press. Available from: Taylor & Francis, Ltd. 325 Chestnut Street Suite 800, Philadelphia, PA 19106. Tel: 800-354-1420; Fax: 215-625-2940; Web site:
Publication Type: Journal Articles; Opinion Papers
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A