Competition in Early Childhood: A Systematic Review of Developmental Evidence and a Preliminary Ecological Framework

Competition remains common but under-theorized in early childhood education (ECE), and its developmental implications are fragmented across distinct research traditions. This systematic review synthesized 56 peer-reviewed empirical studies published between 2000 and 2025 and identified through PsycINFO, Scopus, Web of Science, ERIC, PubMed, and citation searching. Eligible studies examined competitive experiences in children from birth through age 8 across socio-emotional, socio-cognitive, and socio-moral domains. Methodological quality was appraised using the Mixed Methods Appraisal Tool (MMAT), and findings were integrated through a typological narrative synthesis followed by an ecological interpretation. Across heterogeneous experimental, correlational, longitudinal, observational, and qualitative evidence, competition was neither uniformly beneficial nor harmful. Reported developmental findings varied with children's capacities and relational positioning, the demands and social architecture of competitive activities, and the sociocultural meanings through which competition was interpreted and socialized. Methodological concerns included limited representativeness, variable control of confounding, and sparse direct examination of teacher mediation and cross-cultural mechanisms. Drawing on this synthesis, the review proposes the Safe Zone Framework-Assess, Adapt, and Support-as a preliminary evidence-informed conceptual framework for considering how competitive experiences may be understood, structured, and supported in ECE. The framework re-quires empirical validation before it can be considered a classroom protocol.