Using data from a larger 4-year evaluation of England's National Literacy and Numeracy Strategies, this study tested the effects of a school-specific model of transformational leadership on teachers (motivation, capacities, and work settings), their classroom practices, and gains in student achievement. Some 2,290 teachers from 655 primary schools responded to 2 forms of a survey (literacy and numeracy) measuring all variables in our framework. Our measure of student achievement was gains in the British government's own "Key Stage 2" tests over either 2 (numeracy) or 3 (literacy) years. Path analytic techniques were used to analyze the several different versions of the results. Results indicate significant effects of leadership on teachers' classroom practices but not on student achievement. (Contains 1 figure, 5 tables, and 5 notes.)