No, PsyAsia does not offer DiSC. Our tests are highly reliable, internationally validated tests respected by the world’s top psychometricians and psychologists.
The Buros Institute of Mental Measurements (BIMM) publishes the MMY or Mental Measurements Yearbook. The BIMM is highly regarded in the testing and measurement field as a trustworthy source of information and evaluation of mental/psychological tests. It has worked for more than 65 years to advance the field of these measurements.
The Sixteenth Mental Measurements Yearbook (MMY), reports that the DiSC is an “update of the Personal Profile System (PPS),” which had been evaluated in The Tenth MMY. The reviewers’ evaluation of the PPS ends by saying: “The clear lack of data to support this instrument should preclude its use” (bold added). Not surprisingly, the reviewers’ conclusion about the DiSC, which appears in The Sixteenth Mental Measurements Yearbook, says: “The use of the DiSC is not recommended” (bold added).
Also, see Buros (2001):
“There appears no research that finds DISC to measure the traits measured in Marston’s model. The evidence does not meet the criteria established in the APA (American Psychological Association) Standards for Educational and Psychological Testing as of 1999. There are no studies that specify what the DISC predicts. The test suffers from questionable reliability and unknown validity. The use of DISC is not recommended.”