Much of the currently available evidence on the causal effects of public prekindergarten programs on school readiness outcomes comes from studies that use a regression-discontinuity design (RDD) with the age cutoff to enter a program in a given year as the basis for assignment to treatment and control conditions. Because the RDD has high internal…

Traditional histories of American college composition instruction in the 19th and 20th centuries examine primarily the textbooks used in those courses, then draw conclusions based on the content of those textbooks about the activities and attitudes expressed in the classroom. The canon of composition historiography is lacking in several ways: the…

This study investigated the possible causes of the contradiction between the results of two projects. Indiana's Prime Time project compared the achievement of students in large (averaging 26 students) and small (averaging 19 students) classrooms in grades 1 through 3. Results indicated that 3 years in smaller classes had little effect on student…

A project conducted in Tennessee from 1984 through 1989, Student Teacher Achievement Ratio (Project STAR), serves as a context for a discussion of educational research. The decisions required in major research projects and the problems in carrying out research are seldom discussed in conferences that present research results as completed efforts.…