Journal article
Reliability: Consistency or Differentiating Among Subjects?
Abstract
Because reliability is a prerequisite for validity, it is of interest to physical therapists. But what is reliability? Mitchell states, “A reliable instrument is one with small errors of measurement, one that shows stability, consistency, and dependability of scores for individuals on the trait, characteristic or behavior being assessed.”1(p377) This view is concordant wih the opinion offered by Rothstein: “Reliability is basically the …
Authors
Stratford P
Journal
Physical Therapy, Vol. 69, No. 4, pp. 299–300
Publisher
Oxford University Press (OUP)
Publication Date
April 1, 1989
DOI
10.1093/ptj/69.4.299a
ISSN
0031-9023