Aim: A beneficial classroom climate is vital for school achievements, health, well-being, and school satisfaction. However, there is little knowledge as to how the classmate characteristics and class composition are related to the level of a perceived messy and disorderly classroom climate and whether the estimated relationships vary between different groups of children. The aim of the study was to explore the relationship between classmate characteristics as well as class composition and children’s perceived classroom climate. Method: Data from a cross-sectional survey administrated in 71 classes including 1,247 children in a mid-sized Swedish city were used. The analyses were conducted using multilevel models. Results: A class with a higher proportion of girls was associated with a lower likelihood of perceiving the classroom climate as messy and disorderly. Moreover, a higher proportion of immigrant children in a class was associated with a perception of a messier and disorderly classroom climate among non-immigrant children, but not among immigrant children themselves. Conclusion: Classmate characteristics and class composition deserve more research attention and can be important considerations when aiming to improve the classroom climate and children’s well-being in general. © 2017, The Author(s).

Children School health promotion Classroom climate Class composition Public health sciences

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