Journal article
Nonlinear Growth Mixture Models With Fractional Polynomials: An Illustration With Early Childhood Mathematics Ability
Structural equation modeling, Vol.24(6), pp.897-910
01/01/2017
DOI: 10.1080/10705511.2017.1335206
Abstract
Applications of growth mixture modeling have become widespread in the fields of medicine, public health, and the social sciences for modeling linear and nonlinear patterns of change in longitudinal data with presumed heterogeneity with respect to latent group membership. However, in contrast to linear approaches, there has been relatively less focus on methods for modeling nonlinear change. We introduce a nonlinear mixture modeling approach for estimating change trajectories that rely on the use of fractional polynomials within a growth mixture modeling framework. Fractional polynomials allow for more parsimonious and flexible models in comparison to conventional polynomial models. The procedures are illustrated through the use of math ability scores obtained from 499 children over a period of 3 years, with 4 measurement occasions. Techniques for identifying the best empirically derived growth mixture model solution are also described and illustrated by way of substantive example and a simulation.
Details
- Title: Subtitle
- Nonlinear Growth Mixture Models With Fractional Polynomials: An Illustration With Early Childhood Mathematics Ability
- Creators
- Ji Hoon Ryoo - University of VirginiaTimothy R. Konold - University of VirginiaJeffrey D. Long - University of IowaVictoria J. Molfese - University of Nebraska–LincolnXin Zhou - East China Normal University
- Resource Type
- Journal article
- Publication Details
- Structural equation modeling, Vol.24(6), pp.897-910
- Publisher
- Taylor & Francis
- DOI
- 10.1080/10705511.2017.1335206
- ISSN
- 1070-5511
- eISSN
- 1532-8007
- Number of pages
- 14
- Language
- English
- Date published
- 01/01/2017
- Academic Unit
- Psychiatry; Biostatistics
- Record Identifier
- 9984280876602771
Metrics
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