Fine Reffiane, Sudarmin, Wiyanto, Sigit Saptono
The purpose of the study was to develop an instrument for the problem solving ability of students in Hybrid learning by Ethno-STEM via Four-D Model. In the study, the first three stages of the Four-D Model namely; defining, designing, and developing were applied. As the participants, 143 students of elementary education in the 4th semester took part in the study. The participants were selected randomly from 30 universities in Central Java, Indonesia. The data were collected via the assessment instrument of problem solving using Ethno-STEM test ability adapted from Plomp model (2010). The instrument was composed of 9 essay type questions. The analysis of validity was conducted by 10 instructors and teachers, and the instrument was assessed valid and reliable. Empirical validity showed 0.6 for Aiken index, classified into medium validity. Meanwhile, Quest gained ± 2.0 for t INFIT, classified into good instrument. © 2021. Pegem Egitim ve Ogretim Dergisi. All Rights Reserved.
Postgraduate Program, Universitas Negeri Semarang, Indonesia
