%0 Journal Article %@ 2561-6722 %I JMIR Publications %V 5 %N 2 %P e25086 %T The Sign 4 Big Feelings Intervention to Improve Early Years Outcomes in Preschool Children: Outcome Evaluation %A Davidson,Rosemary %A Randhawa,Gurch %+ Institute for Health Research, University of Bedfordshire, University Square, Luton, LU1 3JU, United Kingdom, 44 1582 743797, rosemary.davidson@beds.ac.uk %K language development %K sign language %K early years outcomes %K well-being %D 2022 %7 20.5.2022 %9 Original Paper %J JMIR Pediatr Parent %G English %X Background: Any delays in language development may affect learning, profoundly influencing personal, social, and professional trajectories. The effectiveness of the Sign 4 Big Feelings (S4BF) intervention was investigated by measuring changes in early years outcomes (EYOs) after a 3-month period. Objective: This study aims to determine whether children’s well-being and EYOs significantly improve (beyond typical, expected development) after the S4BF intervention period and whether there are differences between boys and girls in progress achieved. Methods: An evaluation of the S4BF intervention was conducted with 111 preschool-age children in early years settings in Luton, United Kingdom. Listening, speaking, understanding, and managing feelings and behavior, in addition to the Leuven well-being scale, were assessed in a quasi-experimental study design to measure pre- and postintervention outcomes. Results: Statistically and clinically significant differences were found for each of the 7 pre- and postmeasures evaluated: words understood and spoken, well-being scores, and the 4 EYO domains. Gender differences were negligible in all analyses. Conclusions: Children of all abilities may benefit considerably from S4BF, but a language-based intervention of this nature may be transformational for children who are behind developmentally, with English as an additional language, or of lower socioeconomic status. Trial Registration: ISRCTN Registry ISRCTN42025531; https://doi.org/10.1186/ISRCTN42025531 %M 35594062 %R 10.2196/25086 %U https://pediatrics.jmir.org/2022/2/e25086 %U https://doi.org/10.2196/25086 %U http://www.ncbi.nlm.nih.gov/pubmed/35594062