Scoring Formulas and Probability Considerations  

Oleh:

Calandra, Alexander

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 6 no. 1 (Feb. 1941), page 1-9.
Topik: Scoring Formulas; Probability Considerations
Fulltext: Scoring Formulas and Probability Considerations.pdf (290.2KB)

Isi artikel

Bayes' theorem of inverse probability is made the basis of a general equation for scoring objective examinations. The equation so obtained is evaluated by assuming a binomial distribution of examinee knowledge and guessing tendency. A graphical illustration of the application of this equation to a hypothetical test situation is presented. The limitations inherent in the use of Bayes' theorem make it inadvisable to recommend the practical use of the equation unless future experimental evidence indicates an increase in scoring validity which more than compensates for the increase in scoring difficulty.

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