Piller, AimeeFletcher, TinaPfeiffer, BethDunlap, KarenPickens, Noralyn2019-04-052019-04-052018This is the abstract for an article that is available at: https://doi.org/10.1177/1534508418758363. Recommended citation: Piller, A., Fletcher, T., Pfeiffer, B., Dunlap, K., & Pickens, N. (2018). Construct validity of the participation and sensory environment questionnaire–teacher version. Assessment for Effective Intervention, 44(3), 212–224. This item has been deposited in accordance with publisher copyright and licensing terms and with the author’s permission.https://hdl.handle.net/11274/11182https://doi.org/10.1177/1534508418758363Article originally published in Assessment for Effective Intervention, 44(3), 212–224. English. Published online 2018. https://doi.org/10.1177/1534508418758363The Participation and Sensory Environment Questionnaire–Teacher Version (PSEQ-TV) is a teacher report questionnaire designed to examine the impact of the sensory environment on participation for preschool children with autism spectrum disorder (ASD). This study examines the construct validity of the assessment through principal components analysis (PCA). One hundred three preschool teachers completed the research version of the PSEQ-TV. Component analysis revealed six factors: modification, support, preschool tasks, group routines, mealtime, and tactile. This study provides evidence as to the construct validity of the PSEQ-TV. The PSEQ-TV can be used to identify sensory-related environmental barriers within the preschool environment. By identifying these barriers, teachers and other support staff can modify the environment and/or provide support to increase participation of preschool children with ASD across school environmentsen-USSettingEarly childhoodAutism spectrum disorderEnvironmentAbstract