Final answer:
Kumar's belief that a child's background has a greater impact on educational attainment than school resources coincides with James Coleman's findings on between school effects.
Step-by-step explanation:
Kumar's view that a child's background and environment influence educational attainment more than the physical resources a school has, aligns with the conclusions of James Coleman's studies on "between school effects". His seminal work, commonly referred to as the Coleman Report of 1966, highlighted that differences in school facilities and curricula were less significant in determining educational outcomes than the child's home environment and socio-economic background. Hence, Kumar's opinion most closely resembles the conclusions drawn in James Coleman's studies.