Janet A Carr

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  • Janet A Carr
  • Journal of child psychology and psychiatry, and…
  • 1988
A cohort of children with Down's syndrome, and their families, have been seen at intervals from six weeks old. Some follow-up data to 21 yrs are reported here. Until 21 yrs when one mother withdrew her son there have been no losses to the study apart from those caused by death. Mean IQs rose slightly from 11 to 21; scores on language and academic tests(More)
Rats received 2 daily sessions in a large clear chamber. A lever was mounted on each of the 4 chamber walls. For each rat, a different lever provided food during 0930 and 1530 sessions. The rats learned which lever would provide food at 0930 and 1530. Probe tests suggested that the rats learned to press 1 lever during their 1st session of each day and to(More)
Treatment efficacy for homeless substance abusers (primarily crack cocaine) was studied in a randomized control design with subjects (n = 176) assigned to usual care (UC) or an enhanced day treatment program plus abstinent contingent work therapy and housing (EC). Subjects met DSM-III-R criteria for Substance Use Disorder and McKinny Act criteria for(More)
  • Janet A Carr
  • Journal of intellectual disability research…
  • 2005
BACKGROUND Longitudinal studies show that in the general population IQ declines with age: early and rapidly in the case of performance IQ, later and more slowly in the case of verbal IQ. These populations have not apparently included people with intellectual disabilities (ID). METHOD A literature search identified 11 studies, some cross-sectional and(More)
The validity of self-reported crack cocaine use among 131 homeless persons participating in an outpatient substance abuse treatment research demonstration project was assessed by comparing the concordance of self-report and urinalysis results. The subjects were participants in either a Usual Care outpatient program or an Enhanced Care day treatment program(More)
On daily time-place learning tasks animals can work for food at different spatial locations during sessions at different times of the day. In previous experiments rats tracked this pattern of food availability with ordinal timing-they learned to respond at the locations in the correct order each day. In contrast, pigeons used circadian timing. In this(More)
In the GLC Spina Bifida Survey families were interviewed at 11 years old and the effects of a child with spina bifida on the sibs, father and mother were explored. Health and behaviour of the sibs were reported as at least as good as that of sibs of normal children although mothers of disabled children were more likely to feel that the sibs had suffered.(More)
Rats received morning, midday, and afternoon sessions each day in a chamber located in a room containing distal spatial cues. A lever was mounted on each of the four walls. The rats could work for food on a different lever during each of the three sessions. The rats were able to learn the location of food availability during morning, midday, and afternoon(More)