Abstract
Clinimetric studies may use criteria for test-retest reliability and convergent validity
such that correlation coefficients as low as .40 are supportive of reliability and
validity. It can be argued that moderate (.40–.60) correlations should not be interpreted
in this way and that reliability coefficients <.70 should be considered as indicative
of unreliability. Convergent validity coefficients in the .40 to .60 or .40 to .70
range should be considered as indications of validity problems, or as inconclusive
at best. Studies on reliability and convergent should be designed in such a way that
it is realistic to expect high reliability and validity coefficients. Multitrait multimethod
approaches are preferred to study construct (convergent-divergent) validity.
Keywords
List of abbreviations:
ICC (intraclass correlation coefficient), RMD (Rehabilitation Measures Database), SCIRE (Spinal Cord Injury Rehabilitation Evidence)To read this article in full you will need to make a payment
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Article info
Publication history
Published online: April 16, 2016
Footnotes
Disclosures: none.
Identification
Copyright
© 2016 by the American Congress of Rehabilitation Medicine
