ABSTRACT
Prestasi akademis mahasiswa merupakan indikator keberhasilan mahasiswa selama mengenyam ilmu di Perguruan Tinggi. Salah satu faktor yang dapat mempengaruhi prestasi akademis seseorang adalah kejelasan konsep diri (self-concept clarity). Penelitian penelitian sebelumnya terkait pengaruh self-concept clarity terhadap prestasi akademis menunjukkan hasil yang berlawanan. Mengacu pada teori self-regulation dan growth mindset, hubungan antara kedua variabel bisa dimediasi oleh variabel grit. Hasil penelitian yang dilakukan pada 349 Mahasiswa Universitas Indonesia semester 3 ke atas menunjukan bahwa grit memediasi secara penuh (fully mediated) pengaruh self-concept clarity terhadap prestasi akademis (indirect effect = 0.0432, BootSE = 0.0128, CI[0.0202,0.0705]).

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ABSTRACT
Student academic achievement is an indicator of student success while studying in Higher Education. One factor that can affect one's academic achievement is self-concept clarity. Previous research related to the effect of self-concept clarity on academic achievement shows the opposite results. Referring to the theory of self-regulation and growth mindset, the relationship between the two variables can be mediated by the grit variable. The results of research conducted on 349 University of Indonesia students in semester 3 and above show that grit mediates fully (fully mediated) the effect of self-concept clarity on academic achievement (indirect effect = 0.0432, BootSE = 0.0128, CI [0.0202.0.0705]).