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Probability	2
Statistical Distributions	2
College Entrance Examinations	1
Disability Identification	1
Elementary Secondary Education	1
Intelligence Quotient	1
Learning Disabilities	1
Models	1
Participation	1
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Applied Measurement in…	1
Journal of Learning…	1

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Cummings, Cynthia B.	1
Edwards, Don	1
Piotrowski, Richard J.	1
Siegel, Don J.	1

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Information Analyses	2
Journal Articles	2
Opinion Papers	1
Reports - Evaluative	1

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The IQ of Learning Disability Samples: A Reexamination.

Peer reviewed

Piotrowski, Richard J.; Siegel, Don J. – Journal of Learning Disabilities, 1986

E. Burns' (1984) attempt to explain the below average mean IQ scores reported for samples of learning dsabled (LD) students through the use of the bivariate normal probability distribution was examined. Alternative explanations which focus on issues related to the referral, identification, and placement of children are presented.(Author)

Descriptors: Disability Identification, Elementary Secondary Education, Intelligence Quotient, Learning Disabilities

Comments on Holland and Wainer's "Sources of Uncertainty Often Ignored in Adjusting State Mean SAT Scores for Differential Participation Rates: The Rules of the Game."

Peer reviewed

Edwards, Don; Cummings, Cynthia B. – Applied Measurement in Education, 1990

An evolved form of the Edwards and Beckworth (1989) model for probability selection for Scholastic Achievement Test takers using truncated normal distributions is presented. It is shown that the arguments of Holland and Wainer are not sufficient to reject this model. (SLD)

Descriptors: College Entrance Examinations, Models, Participation, Probability