Buletin Psikologi
Vol 17, No 1 (2009)

EFEK SELEKSI AITEM BERDASAR DAYA DISKRIMINASI TERHADAP RELIABILITAS SKOR TES

Saifuddin Azwar (Unknown)

Article Info

Publish Date
03 Jun 2016

Abstract

Seventy three items of IPA (science) test used in the 2006 University of Gadjah Mada under‐graduate admission procedure (Utul UM UGM) were analyzed to reveal the effect of eliminating items based on corrected item‐total correlation coefficient on reliability of the test. Computations of reliability estimates for four different lengths of test (n=11.287) showed that reducing less discriminating items did not lower reliability coefficients as predicted by Spearman‐Brown prophecy. In fact, length of test was practically irrelevant to reliability coefficient when the test consisted of highly discriminating items.

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Journal Info
Buletin Psikologi
Website

Abbrev

buletinpsikologi

Publisher

Universitas Gadjah Mada

Subject

Religion Humanities Neuroscience Public Health Social Sciences

Description

Buletin Psikologi focuses on contextualizing psychological concepts or phenomena within the socio-cultural setting of Indonesia through the use of non-empirical study, such as, literature review, systematic review, scoping review, and meta-analysis. It accepts articles that are based on the thorough ...