Development of Mplus started in October 1995 with the first version being released in November 1998, the second version in February 2001, the third version in March 2004, the fourth
version in February 2006, the fifth version in November 2007, and the sixth version in April 2010. The development of Mplus has been funded in part with Federal funds from the National Institute on Alcohol Abuse and Alcoholism, National Institutes of Health, in the form of
Small Business Innovation Research contracts and grants to the small business Muthén & Muthén.
Besides Linda and Bengt, the current Mplus development team consists of
Tihomir Asparouhov and Thuy Nguyen. This team has been together for several years and under its
development the capabilities of Mplus have grown dramatically. The other member of the Mplus
team is Michelle Conn who has been the Office Manager for the last several years. Over the years, several
other programmers have been involved in the development of Mplus including Stephen Du Toit,
Shyan Lam, Kerby Shedden, and Damir Spisic.
Following is a brief description of the members of the current Mplus
Linda Muthén obtained her Ph.D. in the Research Methods Division of the
Graduate School of Education at UCLA. She was formerly the Manager of Quality Control and
Customer Support at BMDP Statistical Software. She is the Director of Product Development at
Muthén & Muthén where her responsibilities include coordinating product development, designing
the Mplus language, providing customer support, writing the user's guide and other materials
related to Mplus, and teaching.
obtained his Ph.D. in Statistics at the University of Uppsala, Sweden and is Professor Emeritus at UCLA. He was the 1988-89 President of the Psychometric Society and is the 2011 recipient of the Psychometric Society's Lifetime Achievement Award. He has published extensively on latent variable modeling and many of his procedures are implemented in Mplus. He is responsible for determining statistical directions for Mplus, formulating new models, methodological writing, and teaching.
Tihomir Asparouhov obtained his Ph.D. in Mathematics at the California Institute
of Technology. His responsibilities include the development of new statistical techniques,
algorithms, and models; statistical programming; and statistical and technical writing. He has written on complex survey analysis, multilevel modeling, survival analysis, structural equation modeling, and Bayesian analysis.
Thuy Nguyen obtained her M.S. in Computer Science from New York University.
Her responsibilities include development and programming of the user interface, Mplus language
generator, editor, and graphics module in addition to customer support and being responsible
for maintaining the Mplus source code and test problems.