Frequently Asked Questions

Question: What if I purchase the Mplus Base Program and then decide I want an add-on. How much will it cost?

Answer: The cost will be the difference between the price for the Mplus Base Program and the price for the Mplus Base Program plus the add-on. So if you want to buy the Mixture Add-On or the Multilevel Add-On, the academic price would be $150.

Question: Why would I want to purchase the Mplus Base Program and Mixture Add-On instead of purchasing an SEM program and a mixture modeling program?

Answer: One reason is that depending on which SEM program and which mixture modeling program you choose, you can save a few hundred dollars based on current pricing. A second reason is that the Mplus Base Program and Mixture Add-On share the same user interface making the transition between SEM and mixture modeling straightforward. A third reason is that the Mplus integration of SEM and mixture modeling offers features not available when two separate programs are used.

Question: Why would I want to purchase the Mplus Base Program and Multilevel Add-On instead of purchasing an SEM program and a multilevel program?

Answer: One reason is that depending on which SEM program and which multilevel program you choose, you can save a few hundred dollars based on current pricing. A second reason is that the Mplus Base Program and Multilevel Add-On share the same user interface making the transition between SEM and multilevel straightforward. A third reason is that the Mplus integration of SEM and multilevel offers features not available when two separate programs are used.

Question: Why has the academic price for Mplus been raised from $595 in Version 2 to $895 for the Version 3 Mplus Base Program and Combination Add-On?

Answer: The $595 price was chosen to be in line with other SEM programs. Mplus has now evolved far beyond being only an SEM program. The Version 3 Mplus Base Program and Combination Add-On is a combination of SEM, multilevel, and mixture programs. Because the combination version does the job of three programs, the $895 price is quite low.