Children often answer questions when they do not have the requisite knowledge or when they do not understand them. We examined whether "ground rules" instruction--to say "I don't know," to tell the truth, and to correct the interviewer when necessary--assisted children in applying those rules during an interview about a past…

To determine maternal stress and child variables predicting maternal stress, 104 mothers of children with autism spectrum disorder (ASD) and intellectual disability (ID) completed the Dutch version of the Parental Stress Index (PSI; De Brock, Vermulst, Gerris, & Abidin, 1992) every six months over a period of two years. The level of maternal…

Among a cross-sectional sample of pupils of both sexes in Britain evidence showed accelerations in intellectual development at 7 and 16 years of age. Acceleration at the younger age is a new finding. Age, verbal IQ, teacher's estimate, and social class were all significant predictors of intellectual development. (Author/IS)

A comparison of 33 Australian adolescents with Down syndrome who did not receive early intervention services and 41 adolescents with Down syndrome who had received early intervention services found no significant difference between the two cohorts in cognitive functioning. Socioeconomic status, mothers' education, and gender were predictors of…