Pengembangan Tes Pengetahuan Praktikum Biologi Berdasarkan Graded Response dan Generalized Partial Credit  

Oleh:

Ridlo, Saiful

Jenis: Article from Journal - ilmiah nasional - terakreditasi DIKTI - non-atma jaya
Dalam koleksi: Jurnal Penelitian dan Evaluasi Pendidikan vol. 16 (2012), page 166-182.
Topik: a test of biology practicum knowledge (TBPK); GRM; GPCM
Fulltext: 1111-3411-1-PB.pdf (205.18KB)

Isi artikel

This study aims to generate information to define the polytomous item response models which are more suitable with the data. The items were developed by the polytomous item response theory approach. The tryout participants were 1030 Year VII students selected from five junior high schools in Yogyakarta City. A suitable model was selected based on the result of PARSCALE parameterization and a description of the functional relationship between the testees responses and their ability levels indicated by the test information curves (TIC). The study yields 16 items for the item bank in which the discrimination index of each item is > 0.25 logit scale and the difficulty index ranges from -3 to +3 logit scale. The information shows that GRM and GPCM models of are suitable for scoring the administered TBPK. GPCM possibly reflects reality more regarding how the data are yielded so that on the basis of TIC it seems more accurate to estimate students ability than GRM.

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