Pengembangan Instrumen Islamic Adolescent Gratitude Scale (I-AGS) untuk Asesmen Bimbingan dan Konseling Bagi Remaja Muslim
DOI:
https://doi.org/10.60076/njms.v3i10.2068Keywords:
Rasa Syukur, Remaja, Bimbingan, Konseling, Model RaschAbstract
Penelitian ini bertujuan mengembangkan dan menguji validitas instrumen Islamic Adolescent Gratitude Scale (I-AGS) sebagai instrumen asesmen rasa syukur pada remaja Muslim dalam konteks bimbingan dan konseling. Penelitian menggunakan pendekatan kuantitatif dengan desain instrument development research. Partisipan penelitian terdiri atas 310 remaja Muslim usia 15–16 tahun tingkat Sekolah Menengah Atas di Kabupaten Ciamis yang dipilih menggunakan teknik purposive sampling. Pengembangan instrumen dilakukan melalui penyusunan konstruk rasa syukur, penyusunan item, serta pengujian validitas dan reliabilitas menggunakan Model Rasch dengan bantuan perangkat lunak Winsteps versi 3.73. Hasil analisis menunjukkan bahwa dari 48 item yang dikembangkan, sebanyak 39 item dinyatakan valid berdasarkan indikator Mean Square (MNSQ), Z-Standardized (ZSTD), dan Point Measure Correlation (Pt Mean Corr). Uji undimensionalitas menunjukkan nilai raw variance explained by measures sebesar 36,5% dan unexplained variance in the first contrast sebesar 5,9%, yang mengindikasikan bahwa instrumen memenuhi asumsi undimensionalitas. Reliabilitas instrumen tergolong sangat baik dengan nilai person reliability sebesar 0,86, item reliability sebesar 0,98, dan Cronbach’s alpha sebesar 0,90. Selain itu, kategori respons pada skala terbukti berfungsi secara hierarkis dan mudah dipahami responden. Dengan demikian, I-AGS dinyatakan valid dan reliabel untuk digunakan sebagai instrumen asesmen rasa syukur remaja Muslim dalam layanan bimbingan dan konseling
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