Penelitian ini bertujuan untuk mengetahui apakah pemenuhan kebutuhan dasar psikologis berperan sebagai mediator dalam hubungan antara persepsi siswa mengenai iklim emosional kelas dan keterlibatan siswa. Data penelitian dikumpulkan melalui kuesioner lapor diri yang diisi oleh 391 siswa Sekolah Menengah Pertama (SMP) kelas 7 dan kelas 8 dari tiga SMP Negeri di Depok. Hasil analisa mediasi menunjukkan bahwa hubungan antara persepsi siswa mengenai iklim emosional kelas dan keterlibatan siswa dimediasi secara parsial oleh pemenuhan kebutuhan dasar psikologis. Hasil penelitian tersebut mengindikasikan bahwa pemenuhan kebutuhan dasar psikologis siswa di kelas berperan dalam menjelaskan hubungan antara persepsi siswa mengenai iklim emosional kelas dan keterlibatan siswa.

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The aim of this study was to explore the role of basic psychological needs satisfaction as a mediator in the relationship between student’s perception of classroom emotional climate and student engagement. Data were collected through self-report questionnaire filled by 391 of 7th-grade and 8th-grade Junior High School students from three Public Junior High Schools in Depok. The result of mediation analyses showed that the relationship between student’s perception of classroom emotional climate and student engagement was partially mediated by basic psychological needs satisfaction. It indicated that student’s basic psychological needs satisfaction in the classroom took part in explaining the relationship between student’s perception of classroom emotional climate and student engagement.