Nahadi, P. Purnawarman, W. Siswaningsih
This research aims to develop an electronic portfolio assessment model in learning chemistry. The development of the model was intended to developed students' habits of mind and reasoning. Reseerarch on the development of this model was carried out with a research & development method that begins with a preliminary study, development, validation, and application. Research instruments in the form of questionnaires, interview guides, validation sheets and documents as a tool to explore various information needed at each stage. The research respondents consisted of chemistry educators or teachers, high school students, and related stakeholders. In the preliminary study and development phase, a number of research data have been produced. The preliminary study data were in the form of a number of habits of mind and reasoning indicators that form the basis of developing assessment instruments. The data from the development study were in the form of a package of test and non-test assessment instruments constructed from 3 main indicators of habits of mind and 5 indicators of reasoning in chemistry learning. Initial instrument was developed in erased the form of 50 items generated from related indicators, after theoretically validated 48 items were obtained with a CVI index of 0.89 in the good category and all items having a CVR index met valid criteria. Based on the results of the study, the items produced were declared valid and could be used as content to build the electronic portfolio assessment framework and model. © Published under licence by IOP Publishing Ltd.
Universitas Pendidikan Indonesia, Indonesia
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