The ASQ itself is deceptively simple. It consists of four yes-or-no questions that ask whether the person wishes they were dead, feels that they or their family would be better off if they were dead, has thoughts of killing themselves, and, if the answer to any of the previous questions is yes, whether they have a plan. A fifth, non-scoring question asks whether the person would like help. Because it requires no special equipment, no lengthy training, and no psychiatric expertise to administer, the ASQ was designed to be used in emergency departments, primary care clinics, and any other medical setting where patients at risk might otherwise slip through unnoticed. The instrument has been validated in multiple languages and populations around the world, but until this study it had never been formally tested in the Malay language, which is spoken by the majority of Malaysia’s population of more than thirty million people. That gap mattered, because Malaysia sits in a region where suicide rates are underreported and mental health resources are stretched thin.

Translating a suicide screening tool is not as straightforward as swapping words between languages. Questions about death and self-harm are culturally loaded, and phrasing that sounds natural in English can become stilted, ambiguous, or even offensive when rendered literally in another tongue. The research team, led by Yu Xiang Chew and Lai Fong Chan of Universiti Kebangsaan Malaysia, with contributions from Lisa M. Horowitz of the University of Colorado School of Medicine and Children’s Hospital Colorado, one of the original developers of the ASQ, used a rigorous forward-backward translation process. In this approach, one translator converts the instrument from English into Malay, and a second, independent translator converts it back into English without seeing the original. Discrepancies between the back-translated version and the source text reveal ambiguities or distortions in the Malay wording, which the team then refined iteratively. They also assessed face validity, checking whether the questions appeared to measure what they were intended to measure, and content validity, ensuring that all essential dimensions of suicide risk were preserved in the new version.

Once the Malay ASQ was finalized, the researchers put it to the test in a real clinical environment. Their sample comprised 133 psychiatric patients, both inpatients and outpatients, aged between 19 and 70 years, with a mean age of 36.1 years. Nearly three-quarters of the participants, 73.7 percent, were female, and 77.4 percent were ethnically Malay, making the cohort representative of the population for whom the translated tool is intended. The study used a blinded, sequential design that strengthens confidence in the results. First, trained medical students administered the Malay ASQ to each participant. Then, separately, psychiatry medical officers conducted a clinical interview guided by the Brief Suicide Safety Assessment, or BSSA, a structured evaluation widely regarded as a robust reference standard for determining suicide risk. Crucially, the officers conducting the BSSA were blinded to the ASQ results, so their clinical judgments could not be influenced by the screening scores, and vice versa.

The statistical results paint a picture of a screening tool that performs remarkably well where it matters most. Sensitivity, the proportion of truly at-risk patients correctly identified by the screen, came in at 98.3 percent, meaning only a small handful of genuinely endangered individuals would have been missed. Specificity, the proportion of safe patients correctly cleared, was 65.3 percent, which is moderate and means the tool produces a fair number of false positives. The positive predictive value, the likelihood that a positive screen reflects true risk, was 68.7 percent, while the negative predictive value reached 98.0 percent. Overall accuracy was 79.7 percent, and agreement between the ASQ and the clinical interview was moderate, with a Cohen’s kappa of 0.606. In screening contexts, this trade-off is exactly what clinicians want: a tool that errs on the side of caution, catching nearly everyone at risk even at the cost of flagging some patients who ultimately prove safe on fuller evaluation.

Receiver Operating Characteristic analysis, the standard method for quantifying a diagnostic test’s discriminative ability, added further weight to the findings. The area under the curve, or AUC, was 0.818 with a 95 percent confidence interval of 0.745 to 0.891, statistically significant at p less than 0.001. An AUC of 0.8 is conventionally interpreted as good discriminative validity, indicating that the Malay ASQ distinguishes between at-risk and not-at-risk patients far better than chance. For context, a perfect test would score 1.0 and a useless one 0.5, so a value above 0.8 for a four-question instrument administered in under a minute is a strong result. The study also found an interesting demographic signal: patients who screened positive on the ASQ were significantly younger than those who screened negative, with a mean age of 33.14 years compared with 41.06 years, a difference that was statistically significant at p less than 0.001. This aligns with broader epidemiological evidence that younger psychiatric patients often carry elevated suicide risk.

Why does this validation matter beyond Malaysia? The global burden of suicide falls disproportionately on low- and middle-income countries, where the majority of the world’s suicides occur, yet where systematic screening programs are rare and validated instruments in local languages are scarcer still. Many health systems in these settings rely on clinical intuition alone, which research has repeatedly shown to be unreliable, since patients rarely volunteer suicidal thoughts without being asked directly. A validated, free, rapid screening tool in the local language removes one of the biggest practical barriers to universal suicide risk screening. The Malay ASQ gives Malaysian clinicians, and potentially clinicians across the Malay-speaking world, a culturally relevant instrument that can be embedded into routine intake procedures in emergency departments, general medical wards, and psychiatric clinics alike, enabling early identification and timely management of at-risk patients before a crisis occurs.

The study’s design also offers a template for how validation research should be conducted in multilingual settings. By combining a careful forward-backward translation with face and content validity assessment, and then testing the instrument against a blinded gold-standard interview in a real patient population, the team followed best practices in cross-cultural psychometrics. The choice of the Brief Suicide Safety Assessment as the reference standard is particularly notable, because it reflects actual clinical decision-making rather than a purely academic classification. The research was funded by the Fundamental Grant for Faculty of Medicine at Universiti Kebangsaan Malaysia, and the article is open access, meaning clinicians and researchers anywhere can consult the full methodology and adapt the approach for their own languages and populations.

There are, of course, limits to what any single validation study can establish. The sample of 133 patients, while adequate for the statistical analyses performed, came from a single Malaysian psychiatric service, and the predominantly female and Malay composition may not generalize perfectly to other demographic groups or to non-psychiatric medical settings such as emergency departments, where the ASQ is often deployed. The moderate specificity of 65.3 percent also means that health systems adopting the tool must be prepared to conduct follow-up assessments on a substantial share of positive screens, which requires trained personnel and time. Still, the authors conclude that the Malay ASQ is a valid and reliable screening instrument for detecting suicide risk among psychiatric patients, and their evidence supports its use as a practical, culturally relevant tool for early identification in Malaysian settings.

The broader takeaway is a hopeful one for global mental health. Suicide is largely preventable when risk is recognized in time, and the bottleneck has rarely been treatment; it has been detection. Instruments like the ASQ, now shown to survive translation into Malay with their accuracy intact, demonstrate that effective screening does not need to be expensive, lengthy, or technologically sophisticated. Four short questions, asked with care in a patient’s own language, can surface hidden danger and open the door to help. As more health systems in resource-constrained settings adopt validated local-language screening, the invisible fraction of at-risk patients who currently go unnoticed may finally begin to shrink.

Subject of Research: Validation of the Malay-language Ask Suicide-Screening Questions for detecting suicide risk in Malaysian psychiatric patients

Article Title: Concurrent validity and screening accuracy of the Malay Ask Suicide-Screening Questions (ASQ) among a Malaysian psychiatric sample

Article References: Chew, Y. X., Vejayan, A., Lam, C. B. Y., Mokhsain, S. M. S., Ibrahim, Z., Mohd Daud, T. I., Siau, C. S., Tan, Y. K., Mohd Fauzi, M. F. F., Rahman, N. A. A., Uyub, S., Yusoff Azli Shah, S. M., Manocha, S. K., Horowitz, L. M., & Chan, L. F. (2026). Concurrent validity and screening accuracy of the Malay Ask Suicide-Screening Questions (ASQ) among a Malaysian psychiatric sample. BMC Psychiatry. https://doi.org/10.1186/s12888-026-08709-3

Image Credits: AI Generated

DOI: 10.1186/s12888-026-08709-3

Keywords: suicide screening, Ask Suicide-Screening Questions, Malay language, psychiatric patients, Malaysia, concurrent validity, sensitivity, screening accuracy, Brief Suicide Safety Assessment, cross-cultural translation, mental health, BMC Psychiatry

The scientific rationale for a brief fatigue measure is rooted in how fatigue itself is understood. Researchers define fatigue as an overwhelming sense of tiredness, lack of energy, and a feeling of exhaustion associated with impaired physical or cognitive functioning. Its functional purpose is to suppress or terminate activity, and it operates through two complementary pathways. Peripheral mechanisms involve biochemical changes within working muscles that reduce activity independently of the central nervous system, while central mechanisms involve neurochemical changes that generate subjective sensations of tiredness and reduced motivation, prompting individuals to voluntarily stop what they are doing. Both pathways are considered essential to fatigue’s protective role in maintaining whole-body homeostasis, and the new study deliberately focused on the subjective experience, treating fatigue as a unidimensional and simple construct.

That conceptual choice matters because it justifies the use of a single-item scale. Although some scholars have argued that single-item measures are inferior to multi-item scales in reliability and validity, single-item instruments can perform equally well, or even better, when the construct being measured is simple and unitary. Long multi-item questionnaires administered to highly fatigued respondents can feel repetitive and redundant, evoking discomfort or disengagement and thereby degrading data quality. Existing Japanese fatigue scales, including a 24-item adolescent subjective fatigue measure, the 25-item Jikaku-sho shirabe developed for occupational settings, and the 20-item Japanese version of the Multidimensional Fatigue Inventory, are valuable but impractical when participants must respond during ongoing physical activity or work. A one-item rating scale sidesteps that burden entirely, requiring no specialized equipment or technical expertise, unlike physiological indicators such as electroencephalography or heart rate variability.

The validation process unfolded in three phases between July and November 2024. In the first phase, two native Japanese-speaking graduate students in psychology independently translated the original Rating of Fatigue scale into Japanese, one of them blind to the study’s purpose. Three native speakers then consolidated the translations into a single version, and three native English speakers proficient in Japanese, all unaware of the study’s aims, translated the Japanese version back into English following Brislin’s classic back-translation method. Four English speakers subsequently rated the comparability of language and the similarity of interpretability between each back-translated passage and the original on seven-point scales, adapting methodology from Sperber and colleagues. Items scoring above the threshold of 3 on either dimension are considered problematic, and only a single sentence describing the level moderately fatigued required revision, a mismatch traced to differences in the intensity of fatigue conveyed by the corresponding adjectives in the two languages.

The second phase tested face validity and concurrent validity in a questionnaire survey of 85 Tohoku University students, 36 men and 49 women with a mean age of 20.27 years, recruited in October 2024. Participants rated their agreement with six face-validity items drawn from the original scale’s development, both before and after receiving instructional text accompanying the ROF-J, and completed a battery including the Jikaku-sho shirabe, an established Japanese fatigue questionnaire covering five symptom domains: drowsiness, instability, uneasiness, dullness, and eyestrain. Statistical analyses, powered a priori using G*Power and conducted in jamovi with a two-tailed significance level of 0.05, compared responses between the instructed and uninstructed conditions and correlated ROF-J scores with each subscale of the occupational fatigue questionnaire.

The results broadly supported the instrument. Participants generally agreed that the ROF-J measured fatigue, and the score on the item asking whether the instructions were helpful in understanding the scale rose significantly above the midpoint of the rating range, indicating that instructional text improved comprehensibility. Descriptive components and overall understandability did not differ between conditions, echoing patterns seen in the original English scale and its validated French counterpart. One result diverged from the earlier studies: rather than strengthening the perception that the scale measures fatigue while weakening the perception that it measures exertion, the instructions in this sample significantly reduced agreement that the scale represents exertion without significantly changing agreement that it represents fatigue. The authors suggest that because high-exertion tasks frequently produce fatigue, a strict subjective separation of the two experiences may be difficult, and future users should apply the scale with that caveat in mind.

Concurrent validity emerged clearly in the correlation analyses. ROF-J scores showed significant positive correlations with all five subscales of the Jikaku-sho shirabe, meaning that students who reported greater overall fatigue also reported more drowsiness, instability, uneasiness, dullness, and eyestrain. This covariation with an established, widely used Japanese fatigue instrument provides reassurance that the translated scale is tapping the same underlying phenomenon rather than an idiosyncratic construct. An independent-samples t-test also found no significant gender difference in ROF-J scores, with men averaging 3.89 and women 4.57 on the rating scale, supporting the instrument’s comparability across respondent groups at least within this sample.

The third phase examined convergent validity in a real-world athletic setting. Thirty-five members of Tohoku University varsity teams, 18 players from a men’s volleyball team and 17 from a women’s lacrosse team, rated their fatigue on paper immediately before and after regular practice sessions in November 2024. The volleyball squad trained in a gymnasium from seven to nine in the evening, progressing from serving and receiving drills to small-sided match play, while the lacrosse squad practiced at an athletic stadium from early morning, combining passing and shooting drills with sub-team matches. A repeated-measures mixed analysis of variance revealed a significant main effect of measurement time, with a large effect size, no significant effect of team affiliation, and no interaction between the two. Bonferroni-corrected post hoc testing confirmed that ROF-J scores rose significantly after exercise, exactly as observed in the original English validation and the French translation.

Together, the three lines of evidence, translational equivalence, agreement that the scale measures what it claims, correlation with an established domestic questionnaire, and sensitivity to the fatigue induced by physical exercise, indicate that the ROF-J possesses adequate validity for research and applied use. The authors acknowledge important limitations that shape the roadmap ahead. Convergent validity was tested only against physical exercise, leaving open whether the scale is equally sensitive to mental fatigue produced by cognitive tasks, desk work, or other low-intensity repetitive activities. The samples consisted exclusively of university students, so generalization to workers, children, older adults, and clinical populations remains untested. Concurrent validity was established against another self-report measure rather than objective fatigue indices such as performance decrements or physiological markers, a gap that future studies should close.

Even so, the practical significance of the work is considerable. Japan faces a documented fatigue burden: epidemiological survey data indicate that 17.2 percent of Japanese adults consider themselves easily fatigued and 13.2 percent experience residual fatigue that persists without signs of recovery, while national nutrition survey figures show that roughly 38.5 percent of men and 43.6 percent of women sleep fewer than six hours per night, with the burden concentrated among middle-aged adults. Overwork-related deaths from cardiovascular disease and suicides tied to overwork-related mental disorders have risen in recent administrative data, and industries such as road freight transport and care services figure prominently in recognized fatal cases. A brief, validated, single-item Japanese fatigue scale offers occupational health practitioners, sports scientists, and researchers an accessible quantitative tool that can be deployed repeatedly during ongoing activity, supporting intervention design, monitoring, and the broader advancement of fatigue science in Japan and beyond.

Subject of Research: Validation of a Japanese-language, single-item subjective fatigue rating scale for use during ongoing activity

Article Title: Validation of the Japanese Version of the Rating of Fatigue Scale

Article References: Suzuki, K., & Arai, T. (2026). Validation of the Japanese Version of the Rating of Fatigue Scale. Sports Medicine – Open, 12(1), Article 134. https://doi.org/10.1186/s40798-026-01108-8

Image Credits: AI Generated

DOI: 10.1186/s40798-026-01108-8

Keywords: fatigue, Rating of Fatigue scale, ROF-J, scale validation, psychometrics, cross-cultural translation, Japan, exercise, sports science, occupational health, sleep deprivation, karoshi