Applications of Individual Growth Curve Modeling for Pediatric Psychology Research
Growth Curves, Trajectories, Longitudinal Modeling, Statistical Methods
Journal of Pediatric Psychology
Objective: To provide a brief, nontechnical introduction to individual growth curve modeling for the analysis of longitudinal data. Several applications of individual growth curve modeling for pediatric psychology research are discussed.
Methods: To illustrate these applications, we analyze data from an ongoing pediatric psychology study of the possible impact of spina bifida on child and family development (N = 135). Three repeated observations, spaced by approximately 2 years, contributed to the analyses (M age at baseline = 8.84).
Results: Results indicated that individual linear growth curves of emotional autonomy varied as a function of the youth gender by spina bifida group membership interaction.
Conclusions: Strengths of individual growth curve modeling relative to more traditional methods of analysis are highlighted (e.g., completely flexible specification of the time variable, explicit modeling of both aggregate-level and individual-level growth curves).
Pitts, S. C.
(2006). Applications of Individual Growth Curve Modeling for Pediatric Psychology Research. Journal of Pediatric Psychology, 31(10), 1002-1023.
Available at: http://nsuworks.nova.edu/cps_facarticles/874