Best Evidence in Brief: The impact of more teachers and smaller classes in the early years

From experience to meaning...

Yep, a study on class size in the new Best Evidence in Brief:

What difference do smaller class sizes, and more teachers, make in early childhood education (ECE)?
A meta-analysis by Jocelyn Bowne and colleagues, published in Educational Evaluation and Policy Analysis, attempts to find some answers. The analysis included evaluations of ECE programs in the U.S. between 1960 and 2007. The evaluations were either experimental studies, used a high-quality quasi-experimental design, or showed baseline equivalence of treatment and control participants. In total, 38 studies were included, all of which looked at children ages 3 to 5 years old attending an ECE center for 10 hours a week or more for at least 4 months. Child-teacher ratios ranged from 5:1 to 15:1, and class sizes from 11 to 25.
The findings were as follows:
  • Above a child-teacher ratio of 7.5:1, changing the ratio had no effect on children’s cognitive…

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