SIFT is available at no cost. We simply believe that test security is a vital component of validity, and encourage you to check the data. Please fill out the form and you will receive an automated email with a link to download SIFT. The download comes with example files and a detailed manual, which also provides explanations of the various analyses.
Because SIFT is free, it is provided without any support, training, or warranties. Prefer to hire a consultant? Contact us and schedule a time to chat with an expert.