PHQ-9: Validation and Investigation Response Format using Nominal Response Model. JP3I (Jurnal Pengukuran Psikologi dan Pendidikan Indonesia), [S. l.], v. 14, n. 2, p. 113–136, 2025. DOI: 10.15408/jp3i.v14i2.46525. Disponível em: https://journal.uinjkt.ac.id/jp3i/article/view/46525. Acesso em: 29 jan. 2026.