Adaptation and Validation of the Brain Fog Scale (BFS) for University Students in Indonesia | Humanitas (Jurnal Psikologi)

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Published: Aug 30, 2025

DOI: https://doi.org/10.28932/humanitas.v9i2.10728

Keywords:

Brain fog, reliability, adaptation of measuring instruments, students, confirmatory factor analysis Brain fog, reliabilitas, adaptasi alat ukur, mahasiswa, confirmatory factor analysis

Nona Khairunnisa Mumtaz

Fakultas Ilmu Pendidikan, Universitas Pendidikan Indonesia, Bandung, Indonesia

Fatima Mansoor

Fakultas Ilmu Pendidikan, Universitas Pendidikan Indonesia, Bandung, Indonesia

Firdausyi Azahrani

Fakultas Ilmu Pendidikan, Universitas Pendidikan Indonesia, Bandung, Indonesia

Nandya Tabina Arnita

Fakultas Ilmu Pendidikan, Universitas Pendidikan Indonesia, Bandung, Indonesia

Diah Zaleha Wyandini

Fakultas Ilmu Pendidikan, Universitas Pendidikan Indonesia, Bandung, Indonesia

Ghinaya Ummul Mukminin Hidayat

Fakultas Ilmu Pendidikan, Universitas Pendidikan Indonesia, Bandung, Indonesia

Abstract

This study aims to adapt the Brain Fog Scale (BFS) measurement tool for the young adult population in Indonesia. Brain fog is a cognitive disorder characterized by difficulties in concentration, confusion, and mental fatigue. Although many reports describe the symptoms of brain fog, systematic tools for detecting and evaluating this condition are still limited. This research employs a quantitative method with psychometric analysis, including validity and reliability testing. The sample consisted of 208 students selected using convenience sampling. Data were collected using the BFS questionnaire, which consists of 23 items covering three dimensions: mental fatigue, impaired cognitive acuity, and confusion. Data analysis was conducted using Confirmatory Factor Analysis (CFA) for construct validity testing and alpha coefficients for reliability testing. The results show high reliability (alpha = 0.935); however, the construct validity test revealed that the model did not fully fit, with Chi-Square, CFI, and RMSEA values not meeting model fit criteria, although the SRMR value indicated good results. These findings suggest that the BFS tool requires revision to improve construct validity, especially in the Indonesian cultural context. This study provides a foundation for the development of a more suitable BFS tool for detecting brain fog symptoms in young adult individuals.

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Khairunnisa Mumtaz, N., Mansoor, F., Azahrani, F., Arnita, N. T. ., Wyandini, D. Z., & Hidayat, G. U. M. (2025). Adaptation and Validation of the Brain Fog Scale (BFS) for University Students in Indonesia. Humanitas (Jurnal Psikologi), 9(2), 253–270. https://doi.org/10.28932/humanitas.v9i2.10728

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Vol. 9 No. 2 (2025)

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Articles

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This work is licensed under a Creative Commons Attribution-NonCommercial 4.0 International License.

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