The main objective of this research is to describe: (1) the quality of test items including the difficulty index, the discrimination index, the distractor index, and the reliability of the test; (2) the washback of teacher-made test on teacher’s way of teaching; and (3) the washback of teacher-made test on students’ motivation in learning English.
This case study was conducted at Gamaliel Elementary school, Palu, Central Sulawesi in Academic Year of 2016-2017. The sampling used in this research was purposive sampling. In collecting the data, the researcher used interview, observation, and document analysis as the techniques of collecting data. The informants were an English teacher and students of Gamaliel Elementary School. The documents were students answer sheets that were analyzed using ITEMAN program. The data were analyzed by using Interactive Model.
Based on the analysis, it can be concluded that: (1) the teacher-made test administered in final examination overall can be classified as a good test; (2) the teacher-made test administered in final examination brought positive washback on teacher’s way of teaching including what teacher teaches and how teacher teaches; (3) the teacher made-test distributed in final examination brought both positive washback and negative washback on students’ motivation on learning. It influences what students learn and how students learn. Therefore, it is recommended for the English teacher to increase the awareness about the importance of conducting test analysis to know the quality of his made test. The students are suggested not only to study when they have examination, but also study when they do not have any examination. It is recommended for the school to instruct all teachers to analyze the quality of their test and the washback of test itself in their way of teaching. For the other researchers who intend to conduct similar research, the result of this research can be useful as an additional reference.