Child-Staff Ratios in Early Childhood Education and Care Settings and Child Outcomes: A Systematic Review and Meta-Analysis
幼儿教育和保育机构中师生比例与儿童发展结果：系统评价和荟萃分析
期刊:PLoS One
影响因子:2.6
doi:10.1371/journal.pone.0170256
Perlman, Michal; Fletcher, Brooke; Falenchuk, Olesya; Brunsek, Ashley; McMullen, Evelyn; Shah, Prakesh S
