Establishing treatment effectiveness is a high priority for rehabilitation research.
The use of traditional quantitative null hypotheses to achieve this priority is reviewed.
Three problems are identified in the analysis and interpretation of investigations based on statistical testing of hypotheses : (1) contusion of clinical and statistical significance, (2) low statistical power in detecting clinically important results, and (3) a failure to understand the importance of replication in developing a knowledge base for rehabilitation practice.
Technical aspects associated with each problem are reviewed and examples presented illustrating the impact of low statistical power and the results of misinterpreting statistical significance tests.
Several specific recommendations are made to improve the clinical usefulness of quantitative research conducted in rehabilitation.
Mots-clés Pascal : Réhabilitation, Recherche scientifique, Méthodologie, Essai clinique, Validation test
Mots-clés Pascal anglais : Rehabilitation, Scientific research, Methodology, Clinical trial, Test validation
Notice produite par :
Inist-CNRS - Institut de l'Information Scientifique et Technique
Cote : 95-0228581
Code Inist : 002B26O. Création : 09/06/1995.