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On False-Positive and False-Negative Decisions with a Mastery Test.
Peer reviewed Peer reviewed
Wilcox, Rand R. – Journal of Educational Statistics, 1979
Methods are described for obtaining upper and lower bounds to both false-positive and false-negative decisions with a mastery test. These methods make no assumptions about the form of the true score distribution. (CTM)
Descriptors: Bayesian Statistics, Cutting Scores, Mastery Tests, Mathematical Formulas
Retrieval Testing with Hypergeometric Document Models.
Peer reviewed Peer reviewed
Wilbur, W. John – Journal of the American Society for Information Science, 1993
Presents a method of modeling the relevance relationship in information retrieval to answer the question of the theoretical limits of certain statistical methods. Hypergeometric probability distribution is used to construct an abstract model of a database of MEDLINE records, and results of tests of vector retrieval methods are reported. (28…
Descriptors: Automatic Indexing, Bayesian Statistics, Bibliographic Databases, Expert Systems
Statistical Approaches to Environmental Monitoring: Did We Teach the Wrong Things?
Peer reviewed Peer reviewed
Conquest, Loveday L. – Environmental Monitoring and Assessment, 1993
Presents two statistical topics and examples of their use in natural resource monitoring. The first topic deals with use of correlated observations in calculations of variance estimates for a regional mean, required sample size determination, and confidence intervals. The second topic concerns the use of Bayesian techniques in hypothesis testing.…
Descriptors: Bayesian Statistics, Environmental Education, Environmental Research, Evaluation Methods