Misconceptions relating to mental retardation

An updated version of a 9-item questionnaire concerning misconceptions about mental retardation originally developed by Winthrop and Taylor (1956) was administered to a total of 558 individuals from heterogenous samples. The relations of the demographic, experimental, and contact characteristics of the respondents in the 1986 sample to their misconceptions score were explored as were differences in the distributions of the percentages of endorsements of the nine misconceptions for the samples in 1956 and 1986.