TY - JOUR AU - Pohárnok, Melinda AU - Lábadi, Beatrix AU - Balogh, Eszter AU - Kopcsó, Krisztina TI - Psychometric properties of the Hungarian version of the ages and stages questionnaires: Social–emotional‐2 for 18‐month‐old children JF - INFANT MENTAL HEALTH JOURNAL J2 - INFANT MENT HLTH J VL - 47 PY - 2026 IS - 1 PG - 19 SN - 0163-9641 DO - 10.1002/imhj.70050 UR - https://m2.mtmt.hu/api/publication/36373302 ID - 36373302 AB - In Hungary there is no standardized tool to screen early social‐emotional difficulties. This study aimed to evaluate the psychometric properties of the Hungarian version of the Ages and Stages Questionnaires: Social‐Emotional Second Edition for 18‐month‐olds (ASQ:SE‐2/18). Two studies were conducted. Study 1 involved translation, cultural adaptation, and validation in a convenient sample ( N = 423). Study 2 used a nationally representative sample ( N = 4918) to evaluate the factor structure, internal consistency, predictive validity and socioeconomic and demographic correlates. Study 1 supported the cultural adequacy of the Hungarian ASQ:SE‐2/18, and a comparison with the Child Behavior Checklist 1.5–5 provided evidence for its validity. In Study 2, the two‐factor model, consisting of Emotional Difficulty ( α = .74) and Social Difficulty ( α = .69), fit better than the single‐factor model and showed acceptable internal consistency. Being at risk for social (odds ratio = 1.7) or emotional (odds ratio = 3.6) development at 18 months predicted socio‐emotional difficulties at age 3 assessed by the Strengths and Difficulties Questionnaire. Socioeconomic disadvantages were correlated with higher levels of social‐emotional risk. In conclusion, the study demonstrated the reliability of the Hungarian ASQ:SE‐2/18 and offered evidence supporting its validity. Emotional difficulties at 18 months strongly predict later maladjustment, emphasizing the need for early screening and further tool development. LA - English DB - MTMT ER -