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Terms & Conditions

Purchasing and Payment Information
We do not accept bank transfer or wire transfers.  We do not accept purchase orders for orders outside the United States.  International orders must be prepaid using one of the payment options below.

We accept credit card payment. If you are shopping from Europe or anywhere else, place your order and your credit card company will convert the transaction to your own currency.

We accept Visa, MasterCard, Discover, and American Express.

Other payment options include advanced payment by check or money order. Check or money order should be made payable to Muthen & Muthen.  The check should reference your order number and be for the full order amount (not less any bank fees you might incur).

When confirmation of order is received, this is to indicate that we have received your order. It does not indicate that a contract exists between us. We will indicate acceptance of your order, and hence a contract between us, when we send you an invoice. We have included this term to protect us in the case that a mistake has been made in pricing, we have inadvertently under-priced goods, or we are no longer able to supply a particular product for some reason. In the case of a change of price, we will always contact you first to ensure that the price is acceptable.

Return Policy  Software purchased on-line through our website is considered opened at the time of purchase. This also applies to hard copy purchases because downloads are made available at time of purchase.  We have this policy because it would be impossible to return the software. With a traditional retail purchase, a physical product can be returned.

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 allows all prospective buyers to evaluate the product to insure that the software meets their needs before purchasing.  We strongly recommend that all prospective buyers download, install, and test the Demo prior to making a purchase.

In rare instances and only within 30 days of purchase, if due to technical difficulties or platform incompatibilities the software will not function, we may, at our discretion, issue a refund. In such instances, an LOD (Letter Of Destruction) on company letterhead will be required to process the refund.

Shipping and Handling All products are shipped via UPS services.  There is a nominal handling charge for all products.

Orders outside the United States may have customs or VAT charges applied at time of delivery in addition to our shipping and handling charges.  You are responsible for paying any VAT charges. 

Delivery Schedule We will normally process orders within 7 business days. Delivery time depends on shipping option selected and does not include order processing time.

Back Orders If your item is not in stock, we will back order for you. You will always be emailed with the option to cancel your order if you would rather not wait.

Tax Charges For orders made from within the United States sales tax will be applied to all in state orders. Our business is operated from California. All other orders from within the United States are tax free. If you are tax-exempt within California, please contact us about your order.

For orders made from outside of the United States,   taxes may be collected depending on the country's tax code.

Credit Card Security When the order is placed at our website, credit card numbers are encrypted using 128 bit encryption. They are only decrypted after they reach our computer. They are not held in clear text on any web site.

Guarantee We guarantee your satisfaction. All products come with a 30-day return policy.

Reaching Us If you need to reach us, please email us using the link on the store page. Alternatively, you can leave a voicemail message by phone at (310) 391-9971 (International +0 (310) 391-9971) or fax us at (310) 391-8971 or write to us at 3463 Stoner Ave Los Angeles CA 90066 United States

Privacy Policy Muthen & Muthen does not disclose buyers' information to third parties other than when order details are processed as part of the order fulfillment. In this case, the third party will not disclose any of the details to any other third party.

Cookies are used on this shopping site to keep track of the contents of your shopping cart, to store delivery addresses if the address book is used and to store your details if you select the 'Remember Me' Option. They are also used after you have logged on as part of that process. You can turn off cookies within your browser by going to 'Tools | Internet Options | Privacy' and selecting to block cookies. If you turn off cookies, you will be unable to place orders or benefit from the other features that use cookies. Data collected by this site is used to:
a. Take and fulfill customer orders
b. Administer and enhance the site and service
c. Issue a unique identifier (e.g. customer login)
d. Monitor customer account status beyond that required for individual purchases
e. Only disclose information to third-parties for goods delivery purposes

Our Contact details:
Muthen & Muthen
3463 Stoner Ave
Los Angeles, CA 90066
United States
Email: admin@statmodel.com
Federal EIN 95-4494708