Penyetaraan Vertikel Model Kredit Parsial Soal Matematika SMP

Authors

Sugeng Sugeng

Keywords

penyetaraan vertikal, model kredit parsial, tes anchor, kalibrasi, RMSD, RMSE

Document Type

Article

Abstract

Abstrak

Penelitian ini bertujuan menemukan ukuran sampel minimum, pengaruh panjang tes, panjang tes anchor minimum, dan metode penyetaraan tes dalam penyetaraan vertikal model kredit parsial soal Matematika SMP menggunakan common-item nonequivalent groups design. Pembangkitan data melibatkan variasi peringkat kelas terhadap ukuran sampel (300; 600; 1000), panjang tes (10; 20), dan distribusi kemampuan (N(0,1), N(1,1)) sebanyak 50 replikasi menggunakan Program WinGen2. Penyetaraan vertikal melibatkan (a) panjang tes anchor 2, 3, 4, 5, dan 8 butir (panjang tes 20 butir); dan (b) panjang tes anchor 2, 3, 4, dan 5 butir (panjang tes 10 butir). Kriteria pengujian keakuratan penyetaraan menggunakan RMSD dan RMSE. Hasil penelitian menunjukkan: (1) Penyetaraan vertikal pada sampel 300 memiliki rata-rata RMSD dan RMSE cukup kecil untuk semua situasi; (2) Keakuratan penyetaraan meningkat seiring meningkatnya panjang tes; (3) Dengan rentang panjang tes anchor 25% sampai 30% untuk butir politomus, penyetaraan vertikal model kredit parsial memerlukan panjang tes anchor minimum 5 untuk panjang tes 20 butir dan 3 untuk panjang tes 10 butir; dan (4) Metode Mean/Mean cenderung lebih akurat, dalam penyetaraan vertikal IRT butir tes Matematika model kredit parsial diikuti Stocking-Lord, Mean/Sigma, dan Haebara. Kata kunci: penyetaraan vertikal, model kredit parsial, tes anchor, kalibrasi, RMSD, RMSE

First Page

289

Last Page

308

Issue

2

Volume

14

Digital Object Identifier (DOI)

10.21831/pep.v14i2.1083

Recommended Citation

Sugeng, Sugeng (2010) "Penyetaraan Vertikel Model Kredit Parsial Soal Matematika SMP," Jurnal Penelitian dan Evaluasi Pendidikan: Vol. 14: Iss. 2, Article 8.
DOI: 10.21831/pep.v14i2.1083
Available at: https://scholarhub.uny.ac.id/jpep/vol14/iss2/8

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