[Aptitude statements after head injury]

In an exemplary way the case study of M. S. shows that the statements concerning aptitude, which are based on intelligence structure tests, lead to false positive judgements under certain preconditions. Particularly if you postulate learning disorder and partial amnesia, the standard status diagnosis via intelligence and achievement tests has to be supplemented by a method of testing by which the dynamics of cognitive processes can be recorded. In the individual case study of M. S., learning disorder and partial amnesia have been disclosed via the dynamic learning test by Seitz (1998). They did not become manifest when only the routine diagnostic methods were applied. Against the background of socio-legal implications of the specific case some demands on psychological diagnosis and valuation are being discussed from the practician's point of view. They subsequently lead to certain demands concerning academic research. This applies above all to the dynamic learning test which is described above. It states as a result a linear relationship between the effort put into learning and the quantity of learning (the slope is interpreted as an individual constant). The dynamic learning test is also likely to be interesting in respect to pure research in general psychology and the formation of theories.