Ph.D., Dr. phil. nat., Department of Psychology, Research Methods and Evaluation Section, and Department of Psychology, Goethe-University Frankfurt
Diploma, Psychology, Department of Psychology, Goethe-University Frankfurt
- Latent variable models (approaches for the estimation of nonlinear effects, semi- and nonparametric latent models, mixture models, Bayesian analysis)
- Modeling of heterogeneous growth patterns
- Development of a test for the measurement of basic numerical skills
Umbach, N., Naumann, K., Brandt, H., & Kelava, A. (in press). Fitting nonlinear structural equation mixture models in R with package nlsem. Journal of Statistical Software.
Brandt, H., & Klein, A. G. (2015). A heterogeneous growth curve model for non-normal data. Multivariate Behavioral Research, 50(4), 416-435.
Gerhard, C., Klein, A. G., Schermelleh-Engel, K., Moosbrugger, H., Gäde, J., & Brandt, H. (2015). On the performance of likelihood-based difference tests in nonlinear structural equation models. Structural Equation Modeling, 22(2), 276-287.
Brandt, H., Umbach, N., & Kelava, A. (2015). The standardization of nonlinear effects in direct and indirect applications of structural equation mixture models. Frontiers in Psychology (Quantitative Psychology and Measurement).
Kelava, A., & Brandt, H. (2014). A general nonlinear multilevel structural equation mixture model. Frontiers in Psychology (Quantitative Psychology and Measurement), 5, 748.
Kelava, A., Nagengast, B., & Brandt, H. (2014). A nonlinear structural equation mixture modeling approach for non-normally distributed latent predictor variables. Structural Equation Modeling, 21(3), 468-481.
Brandt, H., Kelava, A., & Klein, A. G. (2014). A simulation study comparing recent approaches for the estimation of nonlinear effects in SEM under the condition of non-normality. Structural Equation Modeling, 21(2), 181-195.