Validitas dan Reliabilitas Instrumen CTTMC pada Pembelajaran IPA Terpadu SMP

Abstract

The CTTMC instrument is an assessment instrument with a two-tier multiple-choice type, consisting of a first tier and a second tier. Developing an instrument requires data analysis. The data analysis consisted of validity and reliability tests. In the content validity test using the Aiken formula. Content validity analysis data were obtained from 9 validators. The validation process is carried out through a group discussion forum (FGD). The reliability test used Alpha Cronbach's formula with the ITEMAN application. The results of the content validity were more than 0.74, thus indicating that all the developed items were declared valid. While the reliability results obtained were obtained in the medium-scale trial, tier 1 was 0.711 and tier 2 was 0.707, while in the broad-scale trial, tier 1 was 0.833 and tier 2 was 0.873, indicating that the questions developed had high reliability.

Analisis Butir Soal Ujian Sekolah Menggunakan Program Iteman (Analysis of School Exam Questions Using the Iteman Program)

“…Konsistensi pengukuran, atau seberapa mirip skor tes dari satu pengukuran ke pengukuran lainnya, adalah sebuah reliabilitas. Stabilitas skor individu ditunjukkan oleh koefisien reliabilitas (Kristyasari, 2021). Reliabilitas dibedakan menjadi tiga hal, yaitu jenis konsistensi internal, stabilitas, dan ekuivalensi (Nurgiyantoro, 2013).…”