The particular contribution made by a differential aptitude test in vocational and educational counselling is unique and cannot effectively be replaced by measures of achievement, performance or interest. The kind of information obtained from the DAT can, along with information on interests and previous experience and achievements, facilitate judgements regarding potential success in a course or career. Included among these are the following: abstract reasoning ability, language ability, processing speed, mechanical insight etc. The Differential Aptitude Tests are a series of differential aptitude tests constructed to assess some facets of intellectual functioning. Differential Aptitude Tests – Forms R, S, K and L (DAT)
