130). Interestingly, the research suggests that there is no specific early childhood pedagogy that is inherently superior rather what is important is that children receive exposure to learning as soon as possible. "While no single curriculum or pedagogical approach can be identified as best, children who attend well-planned, high- quality early childhood programs in which curriculum aims are specified and integrated across domains tend to learn more and are better prepared to master the complex demands of formal schooling" ("Eager to Learn: Educating Our Preschoolers," 2000, Commission on Behavioral and Social Sciences and Education, p.307).

One of the problems in demonstrating the efficacy of early childhood education programs such as Head Start, is that they are almost by definition measured for their ultimate efficacy in a long-term fashion. Experimental studies are less valuable than correlational studies because of their short duration, but studies in the field can be affected by...
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