Simplified Formulas for Item Selection and Construction  

Oleh:

Adkins, Dorothy C. ; Toops, Herbert A.

Jenis: Article from Journal - e-Journal
Dalam koleksi: Psychometrika: A Journal of Quantitative Psychology vol. 2 no. 3 (Sep. 1937), page 165-171.
Topik: Item Selection; Construction; Rectangular Distribution; Criterion Scores
Fulltext: Simplified Formulas for Item Selection and Construction.pdf (299.2KB)

Isi artikel

The formula for the Pearson correlation coefficient of a dichotomous variable with a multiple-categoried variable is simplified for computational purposes by effecting in the multiple-categoried variable two types of arbitrary distributions: (1) rectangular and (2) proportional to binomial expansion coefficients. The formulas which result are convenient for the selection of test items and are applicable to the objective estimation of the comparative merits of the alternatives in multiple-choice test items. It is shown that the authoritative answer should have a high positive criterion coefficient, while the omissions and several wrong-answer alternatives should each have low (algebraic) negative criterion coefficients.

Opini Anda

Klik untuk menuliskan opini Anda tentang koleksi ini!

Kembali