Classroom Age Composition and Preschoolers’ School Readiness: The Implications of Classroom Quality and Teacher Qualifications

Oct 15, 2026

Uploaded by Stanley

The study examines how preschool classroom age composition relates to 3- and 4-year-olds’ early learning, and whether classroom quality and teacher characteristics shape these associations. Using a nationally representative FACES subset (n=2,829) from Head Start, results show the link between age composition and academic skills depends on classroom quality, with less predictive quality effects in mixed-age classrooms. Teacher education, rather than experience, further moderates literacy gains for older children.

LanguageEnglish

CategoryResearch & Report

FormatPDF

Pages13

Reading Time33 min

AccessFree to download

Recent Findings and Motivation

Classroom Age Composition and Mixed-Age Classrooms

Study Goals and Moderators

Theoretical Framework

AERA Open January-March 2018, Vol. 4, No. 1, pp. 1–13 DOI: 10. 1177/2332858418758300 © The Author(s) 2018. [http://journals.sagepub.com/home/ero](http://journals.sagepub.com/home/ero) Classroom Age Composition and Preschoolers’ School Readiness: The Implications of Classroom Quality and Teacher Qualifications Kelly M. Purtell The Ohio State University Arya Ansari University of Virginia Recent research has shown that the age composition of preschool classrooms influences children’s early learning. Building on prior research, this study examines whether the association between classroom age composition and children’s learning and development vary based on classroom quality and teacher characteristics using a subset of the Family and Child Experiences Survey (FACES), a nationally representative sample of 3-and 4-year-old children attending Head Start (n = 2,829). Results revealed that the association between age composition and children’s academic skills was dependent on classroom quality and that classroom quality was less predictive of children’s skills in mixed-age classrooms. Teacher education but not experience also moderated the influence of age composition such that mixed-age classrooms taught by a teacher with higher education were not associated with decreased literacy gains among older children. Keywords: age composition, classroom quality, teacher experience and education, Head Start, FACES 2009 The growing recognition of early childhood as a critical developmental period that has lasting influences has led to the expansion of preschool education for 3-and 4-year-oldsin the United States (Duncan & Magnuson, 2013) . With this continued expansion, closer attention must be paid to the different ways in which design characteristics of these programs influence children’s school success. One such feature that has become commonplace across many programs, including Head Start—the nation’s largest federally funded preschool program—is mixed-age classes whereby programs serve children of different ages in the same classrooms. As of 2009, roughly 75% of all Head Start classrooms were mixed-age (Ansari, Purtell, & Gershoff, 2016) . Although mixed-age classrooms represent one of the most common models of education in preschool programs across the country, its efficacy with respect to facilitating children’s school readiness has been debated with limited, dated, and conflicting empirical support (Mason & Burns, 1996; Veenman, 1995) . However, a recent national analysis of Head Start classrooms found sizeable negative associations between mixed-age education and 4-year-olds’academic learning (Ansari et al. , 2016) . Surprisingly, we know little about how other classroom and teacher characteristics might modify the influence of age composition. As part of this study, we focus on features of preschool programs that have been central to the discourse on early childhood education as potential moderators, namely, classroom quality and teachers’ education and experience (Early et al. , 2007; Hatfield, Burchinal, Pianta, & Sideris, 2016; Mashburn et al., 2008) . Our goal is to examine how these classroom features modify associations between age composition and children’s learning and development in Head Start classrooms. Theoretical Framework Whether implemented for pedagogical or logistical reasons, mixed-age classrooms have a long history in preschool, and much of the initial support for this educational model comes from Vygotskian theory, which posits that children learn from their peers (Vygotsky, 1978) . Indeed, mixed-age age classrooms provide younger children the opportunity to model behaviors their older peers exhibit and provide older students with opportunities to scaffold and teach their younger classmates (Lillard, 2016; Winsler et al., 2002) . Mixed-age classrooms also provide students with a greater range of interactions, which is often argued to facilitate the development of a wide range of social

FAQs

What question does the study address about preschool classrooms?

It tests whether the relationship between classroom age composition and children’s learning and development varies by classroom quality and teacher characteristics in Head Start programs.

What dataset and sample size are used?

The analysis uses a subset of the Family and Child Experiences Survey (FACES), with 3- and 4-year-old Head Start children totaling n=2,829.

How do classroom quality and teacher education affect outcomes in mixed-age classrooms?

The association between age composition and children’s academic skills depends on classroom quality, and teacher education (not experience) moderates effects so mixed-age classrooms taught by more educated teachers do not show decreased literacy gains for older children.

Oct 15, 2026

Uploaded by Stanley