Introduction: Workplace mobbing is a psychosocial risk factor associated with adverse mental health outcomes, including depression, anxiety, and suicidal ideation. Accurate assessment of this phenomenon is essential for both research and applied settings; however, validated brief instruments in Spanish remain limited. The Luxembourg Workplace Mobbing Scale (LWMS) is a short measure with sound psychometric properties that allows efficient evaluation of exposure to workplace mobbing. Objective: Translation and validation of the LWMS into Spanish in adults. Methods: A total of 345 adults (51.3% women) participated, completing a sociodemographic questionnaire and psychological instruments. Statistical analyses were conducted using structural equation modelling and item response theory. Results: The LWMS demonstrated adequate content validity; a unidimensional structure (CFI = 0.99, RMSEA = 0.04 90% CI: 0.001, 0.092, SRMR = 0.02); and reliability (ω = 0.79, H = 0.86 and rxx = 0.78). In addition, significant associations were found with depressive symptoms (r = 0.37, p = 0.001), generalised anxiety (r = 0.38, p = 0.001), and suicidal ideation (r = 0.27, p = 0.001). Item 2 showed the highest discrimination and information, and the scale proved to be accurate at higher levels of workplace mobbing. Conclusions: The Spanish version of the LWMS shows solid evidence of validity and reliability, supporting its use as a brief and precise instrument for assessing workplace mobbing in adult populations. Its strong psychometric performance and clinical relevance make it suitable for research, screening, and preventive interventions in occupational settings.
Baños-Chaparro et al. (Tue,) studied this question.