Engagement in instructional leadership in lower secondary education
Instructional leadership, by principals' gender, in lower secondary education
Instructional leadership, by principals' experience as a teacher, in lower secondary education
Instructional leadership, by principals' training in instructional leadership, in lower secondary education
Instructional leadership, by principals' teaching obligation, in lower secondary education
Distributed leadership in lower secondary education
Distributed leadership, by principals' gender, in lower secondary education
Distributed leadership, by principals' formal education, in lower secondary education
Distributed leadership, by principals' professional development activities, in lower secondary education
Distributed leadership, by school size, in lower secondary education