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Direct linkHeck, Ronald H.; Hallinger, Philip – American Educational Research Journal, 2009
Although there has been sizable growth in the number of empirical studies of shared forms of leadership over the past decade, the bulk of this research has been descriptive. Relatively few published studies have investigated the impact of shared leadership on school improvement. This longitudinal study examines the effects of distributed…
Descriptors: Mathematics Achievement, Instructional Leadership, Correlation, Cooperative Planning
