<![CDATA[Abstract: The aim of the research is to develop a peer scaffolding based learning program to equip prospective science teacher students with the ability to develop performance appraisals. This program was developed using a 4D model (Define, Design, Develop, and Disseminate), the development of which has reached the stage of feasibility testing (Develop). Data collection techniques with questionnaires to measure the validity of the feasibility of learning programs and essay tests for the ability to develop performance appraisals. The results of this study indicate that the learning program developed got an average score of 4.00 (very valid category) in all aspects of feasibility. The results of the program trial show that there is an increase in student abilities seen from their N-gain (0.4 moderate criteria). Improvement in the aspect of the ability to understand the scope of the assessment with low criteria (0.036), planning an assessment with medium criteria (0.72). Based on this, it is concluded that the program developed is quite effective in providing performance appraisal skills for prospective science teacher students.Keywords: learning program, peer scaffolding, performance assessment. Abstrak: Penelitian bertujuan mengembangkan program pembelajaran berbasis peer scaffolding untuk membekali kemampuan mahasiswa calon guru IPA dalam mengembangkan penilaian kinerja. Program ini dikembangkan dengan model 4D (Define, Design, Develop, dan Disseminate), yang pengembangannya sampai pada tahap uji coba kelayakan (Develop). Teknik pengumpulan data dengan kuesioner untuk mengukur validitas kelayakan program pembelajaran dan tes esai untuk kemampuan mengembangkan penilaian kinerja. Hasil penelitian ini menunjukkan bahwa program pembelajaran yang dikembangkan mendapat skor rata-rata 4,00 (katagori sangat valid) pada keseluruhan aspek kelayakan. Hasil ujicoba program menunjukkan bahwa terjadi peningkatan kemampuan mahasiswa dengan kriteria sedang (N-gain sama dengan 0,41). Peningkatan pada aspek kemampuan memahami ruang lingkup penilain berkriteria rendah (N-Gain sama dengan 0.036), merencanakan penilaian dengan kriteria sedang (N-gain sama dengan 0.72). Berdasarkan hal tersebut disimpulkan bahwa program yang dikembangkan cukup efektif membekali kemampuan penilaian kinerja bagi mahasiswa calon guru IPA. Kata kunci: program pembelajaran, peer scaffolding, asesmen kinerja.DOI: http://dx.doi.org/10.23960/jpmipa/v23i1.pp284-293]]>
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