An irt model to estimate differential latent change trajectories in a multi-stage, longitudinal assessment
Repeated measures designs are widely used in educational and psychological research to compare the changes exhibited in response to a treatment. Traditionally, measures of change are found by calculating difference scores (subtracting the observed initial score from the final score) for each person....
| Main Author: | |
|---|---|
| Published: |
Georgia Institute of Technology
2009
|
| Subjects: | |
| Online Access: | http://hdl.handle.net/1853/28266 |