[Development of a questionnaire for problem solving].

Presented is the development of a measuring instrument in order to assess the problem solving ability (PLF). The PLF consists of 5 scales: a) experiencing problems, b) problem denial, c) tendency to solve problems in an unconventional way, d) dealing with the problem and e) tendency to conservative problem solving. Test-theoretical analyses are reported as well as, in greater detail, studies for test validation on various populations. High covariations can be shown especially for personality factors.