Second-order latent growth models assess longitudinal change in a latent construct, typically employing identical manifest variables as indicators across time. However, the same indicators may be unavailable and/or inappropriate for all time points. This article details methods for second-order growth models in which constructs’ indicators shift over time.
Hancock, Gregory R. and Buehl, Michelle M.
"Second-Order Latent Growth Models with Shifting Indicators,"
Journal of Modern Applied Statistical Methods:
1, Article 5.
Available at: http://digitalcommons.wayne.edu/jmasm/vol7/iss1/5