caa a22 4500 465757197 CHVBK 20180323111850.0 cr unu---uuuuu 170327e19901201xx s 000 0 eng 10.1007/BF01108463 doi (NATIONALLICENCE)springer-10.1007/BF01108463 Examining contextual differences in the development of instructional leadership and school achievement [Elektronische Daten] [Ronald Heck, George Marcoulides] This study examined the generalizability of a principal instructional leadership model and its impact on school academic achievement across different school levels. The study tested the model across elementary and secondary school levels. The study also examined whether elementary school principals exert stronger instructional leadership influence over their school's academic achievement than high school principals. The results confirmed the fit of the same instructional leadership model to principals from both school levels. The results are discussed in terms of their theoretical and practical implications. Human Sciences Press, Inc, 1990 Heck Ronald University of Hawaii at Manoa, USA aut Marcoulides George Dept. of Management Sciences, California State University, 92634, Fullerton, CA aut The Urban Review Kluwer Academic Publishers-Human Sciences Press 22/4(1990-12-01), 247-265 0042-0972 22:4<247 1990 22 11256 https://doi.org/10.1007/BF01108463 text/html Onlinezugriff via DOI 1 research-article jats NATIONALLICENCE 856 40 https://doi.org/10.1007/BF01108463 text/html Onlinezugriff via DOI NATIONALLICENCE 700 1- Heck Ronald University of Hawaii at Manoa, USA aut NATIONALLICENCE 700 1- Marcoulides George Dept. of Management Sciences, California State University, 92634, Fullerton, CA aut NATIONALLICENCE 773 0- The Urban Review Kluwer Academic Publishers-Human Sciences Press 22/4(1990-12-01), 247-265 0042-0972 22:4<247 1990 22 11256 Metadata rights reserved Springer special CC-BY-NC licence nationallicence BK010053 XK010053 XK010000 NATIONALLICENCE NATIONALLICENCE NL-springer