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ERIC Number: EJ966301
Record Type: Journal
Publication Date: 2012
Pages: 15
Abstractor: As Provided
ISSN: ISSN-1070-5511
Intercept Centering and Time Coding in Latent Difference Score Models
Grimm, Kevin J.
Structural Equation Modeling: A Multidisciplinary Journal, v19 n1 p137-151 2012
Latent difference score (LDS) models combine benefits derived from autoregressive and latent growth curve models allowing for time-dependent influences and systematic change. The specification and descriptions of LDS models include an initial level of ability or trait plus an accumulation of changes. A limitation of this specification is that the intercept is always located at the beginning of the process or observation period. In this article, LDS models are reformulated to allow the intercept to be centered at any time point. Additionally, I describe how the constant change factor can be rescaled to alter its interpretation. (Contains 1 table, 4 figures and 1 footnote.)
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; Reports - Descriptive
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers - Assessments and Surveys: National Longitudinal Survey of Youth