Peran Mental Fatigue terhadap Inhibitory Control dengan Kualitas Tidur sebagai Moderator pada Mahasiswa Tingkat Akhir

Nanda Yuarvani Qurnita, Dra. Sri Kusrohmaniah, M.Si., Ph.D., Psikolog

2026 | Tesis | S2 Psikologi

Mahasiswa tingkat akhir menghadapi beban akademik intensif yang berpotensi memicu mental fatigue dan menurunkan kemampuan inhibitory control. Penelitian ini menguji hipotesis bahwa kualitas tidur memoderasi peran mental fatigue terhadap inhibitory control. Dengan menggunakan desain kuantitatif pada 40 mahasiswa tingkat akhir, data dikumpulkan melalui the Indonesian version of the Multidimensional Fatigue Inventory–20 (IMFI-20), Pittsburgh Sleep Quality Index (PSQI), serta Computerized Stroop Color-Word Task, dan dianalisis menggunakan regresi moderasi dengan prosedur bootstrapping. Hasil menunjukkan kualitas tidur tidak memoderasi secara signifikan hubungan antara mental fatigue dan inhibitory control (p = 0,682), serta tidak ditemukan hubungan prediktif langsung antara mental fatigue dan performa inhibitory control (p = 0,983). Temuan ini mengindikasikan bahwa mahasiswa memiliki mekanisme kontrol kompensatori dan resiliensi kognitif yang memungkinkan mereka mempertahankan performa kognitif objektif meskipun mengalami kelelahan subjektif. Penelitian ini menegaskan ketangguhan fungsi eksekutif dewasa muda terhadap gangguan internal harian.

Final-year students encounter intensive academic demands that potentially induce mental fatigue and risk impairing inhibitory control. This study examines the hypothesis that sleep quality moderates the effect of mental fatigue on inhibitory control among final-year students. Employing a quantitative design with 40 participants, data were gathered using the Indonesian version of the Multidimensional Fatigue Inventory–20 (IMFI-20), Pittsburgh Sleep Quality Index (PSQI), and Computerized Stroop Color-Word Task (CSWT), and analyzed via moderation regression with a bootstrapping procedure. Results showed that sleep quality did not significantly moderate the relationship between mental fatigue and inhibitory control (p=0.682), nor was there a direct predictive relationship (p=0.983). These findings indicate that students utilize compensatory control mechanisms and cognitive resilience to maintain objective performance despite subjective fatigue. Overall, this study highlights the robustness of emerging adults' executive functions against daily internal disruptions.

Kata Kunci : inhibitory control, kualitas tidur, mahasiswa tingkat akhir, mental fatigue, moderasi