1996
DOI: 10.2466/pms.1996.83.1.187
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Assessment of Understanding by People Manifesting Mental Retardation: A Preliminary Report

Abstract: An analysis of the psychological aspects of the legal concept of competency/fitness to stand trial draws attention to the central role of understanding. The rationale of certain basic requirements for the construct validity of a psychometric test of understanding in people with mental retardation is presented, and a test that meets those requirements is described.

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Cited by 6 publications
(6 citation statements)
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“…This study provides evidence of comprehension improvements as a result of the PPD intervention as measured by story retell (Coles et al, 1996). Both Leanne and Celia showed improvements from baseline to intervention ranging from providing no comments during baseline to making relevant statements about the stories following intervention.…”
Section: Discussionmentioning
confidence: 71%
“…This study provides evidence of comprehension improvements as a result of the PPD intervention as measured by story retell (Coles et al, 1996). Both Leanne and Celia showed improvements from baseline to intervention ranging from providing no comments during baseline to making relevant statements about the stories following intervention.…”
Section: Discussionmentioning
confidence: 71%
“…Further, because psychometric instruments are to be interpreted probabilistically while fitness is a deterministic issue (i.e., either fit or unfit), probabilistic measurement approaches are ''inappropriate.'' They proceed to criticize the development of their own instrument (Coles, Freitas, & Tweed, 1996) for assessing fitness in individuals suffering from mental retardation as it reflects a unitary focus on understanding. They comment on the lack of attention paid to the specific deficits of mentally retarded individuals in that they often learn to reply with stock answers to facilitate social interac-tions but have very little understanding of the concepts that they articulate.…”
Section: Recent Psychological and Psychiatricmentioning
confidence: 99%
“…Coles and others presented a preliminary report ofthe development of a psychometric instrument designed to assist psychiatrists and, ultimately, the courts to reach a decision on unfitness in those trials that involve accused persons with mentalretardation (21,22). They selected only I aspect ofunfitness for formal assessment: understanding.…”
Section: Psychometric Assessment Of Unfitness To Stand Trialmentioning
confidence: 99%
“…In their scoring procedure, Coles and others proposed that the 45 individual items on the assessment instrument were to be scored from 0 to 3, depending on the number of questions answered correctly, with the individual item scores then summed to give 3 section scores, each with a maximum of45 (21,22). But single scores for understanding the nature or object of the proceedings, understanding the possible consequences of the proceedings, and being able to communicate with counsel cannot be calculated for exactly the same reason that a single fitness/unfitness score cannot be calculated: they are all synthetic, conjunctive concepts that do not correspond to a single, unitary characteristic.…”
Section: Quantificationmentioning
confidence: 99%