The purpose of this study was to establish the content, construct, and predictive validity of the Effective Board Leadership Practices Survey (EBLPS). The EBLPS was designed to measure the leadership practices of boards of education that support student achievement. A literature review identified 12 board leadership practices supportive of student achievement. These practices formed the content basis of the 33-item EBLPS. A factor analysis approach to construct validity revealed six significant factors underlying the EBLPS, while a t test revealed a significant difference between the mean EBLPS scores of high- and low-achieving school districts.