Citation

Poletiek FH. Behav. Sci. Law 2002; 20(1-2): 19-29.

Affiliation

Unit of Cognitive Psychology, P.O. Box 9555, 2300 RB Leiden, The Netherlands. poletiek@fsw.leidenuniv.nl

Copyright

(Copyright © 2002, John Wiley and Sons)

DOI

10.1002/bsl.468

PMID

11979489

Abstract

When assessing dangerousness of mentally ill persons with the objective of making a decision on civil commitment, medical and legal experts use information typically belonging to their professional frame of reference. This is investigated in two studies of the commitment decision. It is hypothesized that an 'expertise bias' may explain differences between the medical and the legal expert in defining the dangerousness concept (study 1), and in assessing the seriousness of the danger (study 2). Judges define dangerousness more often as harming others, whereas psychiatrists more often include harm to self in the definition. In assessing the seriousness of the danger, experts tend to be more tolerant with regard to false negatives, as the type of behavior is more familiar to them. The theoretical and practical implications of the results are discussed.

Language: en