Under the overall direction of Professor Dr. Samuel Greiff, Professor of Educational Measurement, a completely new testing procedure was developed starting in 2016. The references of the department include, for example, the validation, verification, and development of test procedures that are employed in the PISA study commissioned by the OECD. Modern methods in test development were applied by renowned specialists (including Prof. Dr. Christoph Kemper, who led the research team) in the field of test quality and the development of innovative measurement instruments in the area of personality diagnostics.

The test itself was scientifically validated and normed as a whole. It has achieved very good values in psychometric quality criteria, thus the test has been certified with a very high scientific quality. This test has significant advantages for users: sharp distinctions in motives and a very high measurement accuracy provide a better understanding and high clarity regarding the representation of the complexity of individual personality. The current norming, valid for many years to come, ensures a high significance of the personal test values in comparison to the general population. The development, validation, and documentation of the test were guided by the recommendations of DIN 33430 and the standards for Educational and Psychological Testing of the American Educational Research Association [AERA], the American Psychological Association, and the National Council on Measurement in Education.

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