Rhonwen Parry

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BACKGROUND Executive functioning (EF) is an important concept in cognitive psychology that has rarely been studied in people with intellectual disabilities (IDs). The aim of this study was to examine the validity of two test batteries and the structure of EF in this client group. METHODS We administered the children's version of the Behavioural Assessment(More)
The subjective value of rewards declines as a function of the delay to receive them (temporal discounting). Three temporal discounting tasks that assessed preferences between small amounts of money (10 pence) over short delays (60 s), moderate amounts of money (10 pound) over moderate delays (2 weeks), and large amounts of money (1000 pound) over long(More)
Individuals with intellectual and developmental disabilities often have difficulties foregoing short-term loss for long-term gain. The Iowa Gambling Task (IGT) has been extensively adopted as a laboratory measure of this ability. In the present study, we undertook the first investigation with people with intellectual disabilities using a two-choice child(More)
Background An assessment of mental capacity includes an evaluation of the ability to ‘weigh up’ information, but how to do this is uncertain. We have previously used a laboratory decision-making task, temporal discounting, which involves a tradeoff between the value and the delay of expected rewards. Participants with intellectual disabilities (ID) showed(More)
BACKGROUND An assessment of mental capacity includes an evaluation of the ability to 'weigh up' information, but how to do this is uncertain. We have previously used a laboratory decision-making task, temporal discounting, which involves a trade-off between the value and the delay of expected rewards. Participants with intellectual disabilities (ID) showed(More)
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