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50 Years of ERIC
50 Years of ERIC
The Education Resources Information Center (ERIC) is celebrating its 50th Birthday! First opened on May 15th, 1964 ERIC continues the long tradition of ongoing innovation and enhancement.

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Peer reviewed Peer reviewed
ERIC Number: EJ220299
Record Type: CIJE
Publication Date: 1979
Pages: N/A
Abstractor: N/A
Reference Count: 0
Estimating the Parameters of the Beta-Binomial Distribution.
Wilcox, Rand R.
Educational and Psychological Measurement, v39 n3 p527-35 Fall 1979
For some situations the beta-binomial distribution might be used to describe the marginal distribution of test scores for a particular population of examinees. Several different methods of approximating the maximum likelihood estimate were investigated, and it was found that the Newton-Raphson method should be used when it yields admissable (positive) results. (Author/JKS)
Publication Type: Journal Articles; Reports - Research
Education Level: N/A
Audience: N/A
Language: English
Sponsor: N/A
Authoring Institution: N/A
Identifiers: Beta Binomial Model; Distributions (Statistical); Examinees