New Developments in Mplus Version 7: Part 2 - Muthén & Muthén
New Developments in Mplus Version 7: Part 2 - Muthén & Muthén
New Developments in Mplus Version 7: Part 2 - Muthén & Muthén
You also want an ePaper? Increase the reach of your titles
YUMPU automatically turns print PDFs into web optimized ePapers that Google loves.
Latent Transition Analysis: Probability ParameterizationLTA models that do not have cont<strong>in</strong>uous x’s can be more convenientlyspecified us<strong>in</strong>g PARAMETERIZATION=PROBABILITY. Considerthe probability parameterization for CLASSES = c1(3) c2(3):c1c21 2 31 p11 p12 02 p21 p22 03 p31 p32 0where the probabilities <strong>in</strong> each row add to 1 and the last c2 class arenot mentioned. The p parameters are referred to us<strong>in</strong>g ON. The latentclass variable c1 which is the predictor has probability parameters[c1#1 c1#2], whereas ”<strong>in</strong>tercept” parameters are not <strong>in</strong>cluded for c2.A transition probability can be conveniently fixed at 1 or 0 by us<strong>in</strong>gthe p parameters.Bengt <strong>Muthén</strong> & Tihomir Asparouhov <strong>New</strong> <strong>Developments</strong> <strong>in</strong> <strong>Mplus</strong> <strong>Version</strong> 7 84/ 159