All this is well and good, but while the criterion for impaired intellectual functioning is clearly operationalized by an IQ threshold, there is as yet no standard by which impaired social functioning -- impaired social intelligence can be determined. The Vineland Social Maturity Scale (Doll, 1947) was an important step in this direction: this instrument, which yields aggregate scores of social age (analogous to mental age) and social quotient (by analogy to the intelligence quotient, calculated as social age divided by chronological age). However, it is a telling point that this instrument for evaluating social intelligence and other aspects of adaptive behavior was introduced almost a half century after the first IQ scale was introduced by Binet and Simon. The Vineland, which has been recently revised (Sparrow, Balla, & Cicchetti, 1984), but its adequacy as a measure of social intelligence is compromised by the fact that linguistic functions, motor skills, occupational skills, and self-care and self-direction are assessed as well as social relations. As an alternative, Taylor (1990) has proposed a semistructured Social Intelligence Interview covering such domains as social memory, moral development, recognition of and response to social cues, and social judgment. However, Taylor concedes that such an interview, being idiographically constructed to take account of the individual's particular social environment, cannot easily yield numerical scores by which individuals can be compared and ranked. More important than ranking individuals, from Taylor's point of view, is identify areas of high and low functioning within various environments experienced by the individual, and to determine the goodness of fit between the individual and the environments in which he or she lives. This latter goal, of course, is a primary thrust of the social intellience view of personality espoused by Cantor and Kihlstrom (1987).