There are several recent updates to my Latent Structure Analysis web pages. The main ones are as follows: 1. The Latent Class Analysis web site has moved. The new URL is: http://ourworld.compuserve.com/homepages/jsuebersax The old site at xoom.com will be retained, but updates will mostly be made only on the new site. Several new pages devoted to the subject of diagnosing and modeling conditional dependence in latent class models will be added within the next couple of days. 2. I've added a separate site for Latent Trait Analysis. The URL for the main page is: http://ourworld.compuserve.com/homepages/jsuebersax/lta.htm 3. Also new are a couple of pages on Tetrachoric and Polychoric correlations. These contain explanations, examples, references, and software. The URL is: http://ourworld.compuserve.com/homepages/jsuebersax/tetra.htm If any of these links do not work, please let me know. -- John Uebersax [EMAIL PROTECTED] Sent via Deja.com http://www.deja.com/ Before you buy. ================================================================= Instructions for joining and leaving this list and remarks about the problem of INAPPROPRIATE MESSAGES are available at http://jse.stat.ncsu.edu/ =================================================================