The study aims to reveal the effect of the number of alternatives and items in estimating the parameters of individuals and  items using the four-parameter Parametric model, using the descriptive survey methodology, and the study population consisted of all students of the psychology of life subject, which numbered approximately (245) male and female students, and the study sample consisted of (237),(156) male and (81) female by using proposive sample (The study instrument consisted of three experimental models, and verified the validity of the content, construction and consistency by internal consistency.

Results were obtained for matching individuals and items to the four-parameter model using matching indicators. The parameters of individuals, items, and standard errors were estimated in classical theory (difficulty, discrimination) and item response theory (difficulty, discrimination, guessing, Upper Asymptote), and assumptions were achieved (Unidimesionality, Monotone Homogeneity, Item Characteristic Curve, item Information Function and Test).

The results in the classical theory have found differences between the mean parameters (discrimination) of the two and three variants, and between the two alternatives and the four, in favor of the three and four, and the differences in the theory of response to the item between the parameter means (Upper Asymptote) for the number of items (9) and (15), and (9) and (24), in favor of (15, 24) items.

Key words: Alternatives Number, Item Number, Estimation of Persons And Items Parameters, Four Parameter Logistic Model.

Title

مجلة جامعة القدس المفتوحة للأبحاث والدراسات التربوية

Publisher

جامعة القدس المفتوحة

Publisher Country

Palestine

Publication Type

Online only

Volume

11

Year

2021

Pages

101–83