Adverse childhood experiences among early care and education teachers: Prevalence and associations with observed quality of classroom social and emotional climate. The quality of different types of ch...Adverse childhood experiences among early care and education teachers: Prevalence and associations with observed quality of classroom social and emotional climate. The quality of different types of child care at 10 and 18 months: A comparison between types and factors related to quality. Child-staff ratios in early childhood education and care settings and child outcomes: A systematic review and meta-analysis.