1. *indicates that the study was included in this review.
2. Life in the Village: Teacher Community and Autonomy in an Early Childhood Education Center
3. Bolam, R., McMahon, A., Stoll, L., Thomas, S. & Wallace, M. (with Greenwood, A., Hawkey, K., Ingram, M., Atkinson, A. & Smith, M.). (2005). Creating and sustaining effective professional learning communities (Research Report No. 637). London: Department for Education and Skills and University of Bristol.