Measure higher order problem-solving ability in individuals ages 7 to 80
A–level products do not require any specific qualifications.
B–level products require that the user has completed graduate–level courses in tests and measurement at a university or has received equivalent documented training.
C–level products require fulfillment of b–level qualifications, and users must have training and/or experience in the use of tests and must have completed an advanced degree in an appropriate profession (e.g., psychology, psychiatry). Depending on state requirements, membership in a relevant professional organization (e.g., APA) or a state license/certificate in psychology or psychiatry may be necessary.
