Studies of small-scale "model" early-childhood programs show that high-quality preschool can have transformative effects on human capital and economic outcomes. Evidence on the Head Start program is more mixed. Inputs and practices vary widely across Head Start centers, however, and little is known about variation in effectiveness within…

The study determined the: (1) relationship between dropout rates and the quality of education, teachers' qualifications, diversity of curriculum and extra-curricular activities, average town income, percentage of the high school population of American Indian or Metis descent, and school size; (2) effects of educational expenditures on business…