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Muthen & Muthen accepts orders only from end users. We are not affiliated with any reseller and do not work with resellers. Please contact us if you need help with ordering.

We do not accept international purchase orders or purchase orders under $250.00.

Please note that we do not accept wire transfers.

All sales are final.  The Mplus Demo is available at no charge via download.  The Mplus Demo is identical to the regular version with the exception that the number of variables is limited.  This should be used to evaluate the product to insure that the software meets your needs before purchasing.  We strongly recommend that all prospective buyers download, install, and test the Demo prior to making a purchase.