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VALIDITY AND RELIABILITY OF ADOLESCENT LEARNING STYLE INSTRUMENT (IGBR) DEVELOPMENT: RASCH MODEL ANALYSIS Anbiya, Delvira Nur; Imaddudin, Aam; Sulistiana, Dewang
Jurnal Kajian Pendidikan dan Psikologi Vol. 3 No. 1 (2025): Jurnal Kajian Pendidikan dan Psikologi
Publisher : PT Altin Riset Publishing

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.61397/jkpp.v3i1.322

Abstract

Learning style is the way each learner begins to contribute to processing, processing and retain new and difficult information. The development of an adolescent learning style instrument helps students to identify learning style patterns based on the theory used. However, the limitations of the adolescent learning style instrument have only been tested on junior high school students. This research aims to develop, test the validity and reliability of an adolescent learning style instrument using the Winstep software RASCH model. Participants in this research were 840 students at the junior high school level in Tasikmalaya City and Regency. The results of the item validity test using the RASCH Model program Winstep software show that all items are valid (126 items) with the Outfit Mean Square (MNSQ) value. The results of the reliability test of the adolescent learning style instrument, consisting of 126 items, were declared valid; the Cronbach's Alpha value was 0.85, which is in the very good category. The Person Reliability value of 0.87 is at a good level. And the Item Reliability value of 0.99 shows that the level of item consistency is in the special category.
Pengujian Psikometrik Instrumen Self-Determination: Analisis Rasch Model Labibah, Astri Asih; Anbiya, Delvira Nur; Fauzi, Zulfa Luthfiah; Ahman, Ahman
GUIDING WORLD (BIMBINGAN DAN KONSELING) Vol 9 No 1 (2026): Guiding World: Jurnal Bimbingan dan Konseling
Publisher : Program Studi Bimbingan dan Konseling

Show Abstract | Download Original | Original Source | Check in Google Scholar | DOI: 10.33627/gw.v9i1.4205

Abstract

Keterbatasan pendekatan teori tes klasik dalam pengujian instrumen, seperti ketergantungan karakteristik butir terhadap subjek yang diuji, estimasi kemampuan yang bergantung pada komposisi item, serta informasi respons yang terbatas pada skor benar–salah tanpa mempertimbangkan pola jawaban, mendorong penggunaan teori tes modern. Oleh karena itu, penelitian ini bertujuan untuk menguji validitas dan reliabilitas instrumen self-determination menggunakan Model Rasch. Penelitian ini menggunakan pendekatan kuantitatif dengan desain cross-sectional yang melibatkan 125 peserta didik. Analisis data dilakukan menggunakan Rasch Model dengan bantuan perangkat lunak Winsteps versi 3.73. Evaluasi kualitas instrumen meliputi pengujian unidimensionalitas, analisis karakteristik butir (tingkat kesukaran dan kesesuaian item), serta analisis reliabilitas instrumen. Hasil analisis menunjukkan bahwa instrumen self-determination memenuhi kriteria validitas dan reliabilitas berdasarkan Rasch Model, sehingga layak digunakan sebagai alat ukur untuk mengungkap kemampuan self-determination pada peserta didik usia remaja.