Latent Transition Analysis With a Mixture Item Response Theory Measurement Model
- 3 September 2010
- journal article
- research article
- Published by SAGE Publications in Applied Psychological Measurement
- Vol. 34 (7), 483-504
- https://doi.org/10.1177/0146621610362978
Abstract
A latent transition analysis (LTA) model was described with a mixture Rasch model (MRM) as the measurement model. Unlike the LTA, which was developed with a latent class measurement model, the LTA-MRM permits within-class variability on the latent variable, making it more useful for measuring treatment effects within latent classes. A simulation study indicated that model recovery using the LTA-MRM was good except for small sample size—short test conditions. A real data application of a mathematics intervention with middle school students indicated that the LTA-MRM clearly detected the intervention effect and also provided a means of helping to better understand the effects compared to a standard multiwave analysis of variance.Keywords
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