Parents' reports on their children's functioning were obtained from the Minnesota Child Development Inventory (MCDI) during a review of 132 cases. These data were found to be highly correlated (r = .92) with mental ages obtained during formal psychometric evaluation. The data support the use of the MCDI as an additional tool in the assessment of clinical population of children suspected of having developmental disabilities.
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Robert C. Colligan (1977) studied this question.
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