Client-Centred Rehabilitation - Arthritis Community Research ...

Internal consistency still slightly lower in medicaid population, but not as low. Ranged from 0.48 (getting
the care you need) to 0.79 (communication) for adults with Medicaid, and from 0.48 (reasonable
paperwork) to 0.88 (customer service) in the privately insured population
reliabilities of global ratings at plan level, and domains on internal consistency for children's care
(answered by proxy by the child's parent) followed similar patterns, but were slightly lower than that for
adult care
Response rates were very low, ranging from 19% (Medicaid demonstration sites) to 61% (privately insured
in field test) from random sample of 5,878 and 313 (two medicaid samples) and 11,393 and 539 (two
privately insured groups). Methods of contact were phone, mail and mixed, in New Jersey, Washington
State, California and Oklahoma..
The implementation manual for CAHPS recommends having a sample size of no less than 300
individuals for adequate reliability in almost all of the global ratings for health plan comparison
in populations of the privately insured and adults on Medicaid; more then 300 responses are
required for children on Medicaid.
Issues:
the questionnaire is very focussed on primary care and interactions with the health care plan, and may not
applicable to rehabilitation without significant rewriting; also its focus on the choice of health care plans is
not as applicable in Canada as it is in the United States
References:
Crofton C, Lubalin JS, Darby C. Foreword. Medical Care 1999; 37(3 supplement): MS1-MS9.
Harris-Kojetin LD, Fowler FL, Brown JA, Schnaier JA, Sweeny SF. "The use of cognitive
testing to develop and evaluate CAHPS TM 1.0 core survey items. Medical Care 1999; 37(3
supplement): MS10-MS21.
Hays RD, Shaul JA, Williams VSL, Lubalin JS, Harris-Kojetin LD, Sweeny SF, Cleary PD.
Psychometric properties of the CAHPS TM 1.0 survey measures. Medical Care 1999; 37(3
supplement): MS22-MS31.