INTERVIEWER BIAS ON SUBJECTIVE QUALITY-OF -LIFE AND SATISFACTION WITHCARE IN SHELTERED LIVING

The impact of interviewer-effects on subjective evaluative criteria wa s examined in a randomized control group design (n=26x2) of clients of sheltered living in Berlin-Spandau. The assessment of care and subjec tive quality of life showed that clients were more satisfied if they h ad been interviewed by their responsible caregivers compared to interv iewers from other providers of the same region - unknown to the client s. Conductibility of interviews was independent of interview condition s. A systematic overestimation of satisfaction should be taken into ac count if responsible caregivers interview their own clients. Such data should not be used comparing different settings.