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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 but we do accept international orders using credit card, PayPal or advanced payment with check/draft drawn on a U.S. bank.

Purchase orders in the United States must be over $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.


Mplus Software



Regular business hours are:
Monday - Friday       9:00 a.m. - 5:00 p.m. Pacific time
Saturday & Sunday   closed
Orders or inquiries placed during non-business hours will be processed during regular business hours.