“…Subsequently, produced a significant shift in re-test response of both Scottish and Pakistani children after the introduction of a female Indian tester. Against this must be set the findings of the many investigators who have controlled for this type of experimenter effect and failed to establish the tester's race as a significant variable, e,g, Morland (1962Morland ( , 1963Morland ( , 1966, Hraba and Grant (1970), Banks and Romf (1973), Bunton and Weissbach (1974), Moore (1976), and Teplin (1977), Some investigators have used own-race testers for each group of subjects but, as Milner (1973) observes, this is really no solution at all since it is equally plausible that own race testers may unwittingly induce a bias towards a more favourable in-group response. Moreover, at least one group of experimenters (Epstein et al, 1976) has found that significantly more black children expressed a preference for their own group when interviewed by a white person, than those interviewed by a black person.…”