Rasch Analysis of the Student Mental Health Scale (ISKM-R-2)

Lira Fessia Damaianti (Universitas Pendidikan Indonesia)
Muhamad Arif Saefudin (Universitas Pendidikan Indonesia)
Farhan Zakariyya (Universitas Pendidikan Indonesia)
Helli Ihsan (Universitas Pendidikan Indonesia)
Siti Chotidjah (Universitas Pendidikan Indonesia)
Ghinaya Ummul Mukminin Hidayat (Universitas Pendidikan Indonesia)
Aslama Tazkia (Universitas Pendidikan Indonesia)
Atha Khalila Mustafid (Universitas Pendidikan Indonesia)
Camila Azzahra Nurrohman (Universitas Pendidikan Indonesia)
Nafisya Bulan Andari (Universitas Pendidikan Indonesia)
Ni Kadek Ayu Regitha Pramesti (Universitas Pendidikan Indonesia)

Psikodimensia: Kajian Ilmiah Psikologi
Vol 25, No 1: June 2026

Adolescent mental health is a critical issue, as this developmental stage is often marked by vulnerability to psychological problems, yet standardized measurement tools remain limited. This study aimed to evaluate the psychometric properties of the Student Mental Health Scale (ISKM-R-2) using the Rasch model. A methodological study design was adopted with a cross-sectional method, including 1,045 adolescents aged 15–19 years. The results suggested that the instrument had a multidimensional structure, with a two-factor model showing a better fit than the unidimensional model. Rasch analysis showed acceptable item fit and high reliability across dimensions. However, the instrument items were relatively difficult for the sample, as shown by the Wright Map analysis. The results of this study supported the importance of a multidimensional method in measuring student mental health and provided evidence for further refinement of the instrument.