00703nam a22001817a 4500008004100000020002200041020002200063050002200085245021400107260003400321300003700355650001600392650002300408650002500431700002100456700002600477700001800503250709b        |||||||| |||| 00| 0 eng d  a978-3-030-69347-3  a978-3-030-69345-9  aLB1028b.C66 2021  aConcept and design development in school improvement research:bLongitudinal, Multilevel and mixed methods and their relevence for educational accountability /cBeverborg, Arnoud Oude Groote [Eds.]  ...[at al]  aSwitzerland:bSpringer,c2021  aviii, 312 p. :bgraphs ;c24 cm.  aDevelopment  aSchool development  aImprovement research  aFeldhoff, Tobias  aMerki, Katharina Maag  aRadisch, Falk