Drawing on Blumberg and Greenfield′s studies of effective principals, offers an operational definition of school vision, based on teachers′ perceptions of that vision. The instrument developed consists of three subscales: (1) vision exchange – the principal′s effectiveness in exchanging his/her vision with the school community; (2) vision internalization – the principal′s effectiveness in getting others to internalize this vision, and; (3) vision sacrifice – the principal′s effectiveness in encouraging others to sacrifice for this vision. In an effort to validate the School Vision Inventory (SVI), three hypotheses were tested. The perceived robustness of the principal′s role was significantly correlated with two subscales of the SVI: exchange and sacrifice. Significant correlations were also found between teachers′ perceptions of the principal′s supervisory expertise and vision exchange and sacrifice. Finally, there were higher mean principal vision scores in schools where teachers perceived progress being made towards vision realization. Presents the SVI as a potentially useful way of assessing school vision, providing further insight into the dynamics of professional life in schools.
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