Dyadic relationship scale: a measure of the impact of the provision and receipt of family care.
OBJECTIVE
This study evaluated the psychometric properties of the Dyadic Relationship Scale (DRS), which measures negative and positive dyadic interactions from the perspective of both the patient and the family caregiver. An important aspect of evaluating the DRS was that it be statistically sound and meaningful for both members of the dyad.


METHODS
The study used a cross-sectional design. Survey packages were mailed to home health care patients and their family caregivers. The unit of analysis was the dyad, and exploratory and confirmatory factor analyses were conducted. We examined the reliability, discriminant, and concurrent validities of the instrument.


RESULTS
The data supported a two-factor DRS that included negative dyadic strain (patient alpha =.84; caregiver alpha =.89) and positive dyadic interaction (patient alpha =.86; caregiver alpha =.85). The analysis supported the DRS's construct, discriminant, and concurrent validity, as well as its reliability for both patients and family caregivers.


CONCLUSIONS
Using the DRS to measure the impact of family care on positive and negative interactions inclusive of patients and caregivers can assist in identifying areas of difficulty and guide interventions to improve outcomes for both members of the dyad.
Sebern
Margaret D
MD
College of Nursing, Marquette University, Clark Hall, Room 351, P.O. Box 1881, Milwaukee, WI 53201, USA. marge@sebern.com
Whitlatch
Carol J
CJ
D000328:Adult; D000368:Aged; D000369:Aged, 80 and over; D017028:Caregivers / Q000523:psychology*; D002908:Chronic Disease / Q000451:nursing / Q000523:psychology; D003430:Cross-Sectional Studies; D003863:Depression / Q000523:psychology; D005192:Family Health; D005260:Female; D006699:Home Care Services; D006801:Humans; D007398:Interpersonal Relations; D008297:Male; D008875:Middle Aged; D015146:Midwestern United States; D011569:Psychiatric Status Rating Scales / Q000592:standards*; D011594:Psychometrics; D011795:Surveys and Questionnaires / Q000592:standards*