| Abstract: |
Early childhood and primary education represent foundational developmental windows during which institutional governance and pedagogical climate profoundly shape lifelong learning trajectories. Despite extensive scholarship examining principal effectiveness in secondary schooling, empirical evidence quantifying how multidimensional school leadership directly and indirectly shapes holistic development among young learners remains fragmented. This study empirically investigates the impact of four core school leadership dimensions Instructional Leadership (IL), Transformational Leadership (TL), Distributed Leadership (DL), and Inclusive-Relational Leadership (IRL) on the holistic development of young learners aged five to nine years across cognitive-literacy, numeracy and executive function, socio-emotional learning, and behavioral self-regulation domains. Using a stratified multi-stage design, triangulated quantitative data were collected over a nine-month academic year from 28 principals, 84 primary teachers, and 420 young learners (Grades K–3) across urban, suburban, and rural schools. Psychometric evaluation confirmed high internal consistency across instruments (Cronbach's α = 0.86 to 0.93). Zero-order Pearson correlations revealed robust positive associations between the Composite School Leadership Index (CSLI) and Composite Holistic Learner Development (CHLD; r = 0.68, p < 0.001), with Distributed Leadership (r = 0.68) and Instructional Leadership (r = 0.62) exhibiting the strongest bivariate links. One-way variance analysis demonstrated substantial developmental superiority in Distributed-Integrated leadership regimes (M = 83.30) over administrative baseline schools (M = 64.63; F = 48.72, p < 0.001, η² = 0.260). Hierarchical regression and structural bootstrapping established that leadership and school-process mediators explain 58.4% of variance (R² = 0.584), with teacher efficacy (β = 0.29) and classroom climate (β = 0.25) mediating 57.1% of leaders |
