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Additional file 1: Table SA. Measurement Invariance Test for the Moderator “Type of Training”. Table SB. Measurement Invariance Test for the Moderator “Domain of Training”. Table SC. Mediation and Moderated Mediation Models – Model fit indices. Table SD. Mediation and Moderated Mediation Models –Coefficients and P-values. Table SE. Scale items used in the present study.

Seifried, Jürgen [Hrsg.]; Seeber, Susan [Hrsg.]; Ziegler, Birgit [Hrsg.]: Jahrbuch der berufs- und wirtschaftspädagogischen Forschung 2016. Opladen; Berlin ; Toronto : Verlag Barbara Budrich 2016, S. 205-222. - (Schriftenreihe der Sektion Berufs- und Wirtschaftspädagogik der Deutschen Gesellschaft für Erziehungswissenschaft (DGfE)), Die Autoren präsentieren die Ergebnisse einer explorativen Studie zur Beurteilung kaufmännischer Auszubildender in der betrieblichen Praxis. 136 Ausbildungsbetriebe nahmen an der Studie teil, und es zeigt sich, dass die in den Betrieben eingesetzten Beurteilungsbogen primär auf eine Bewertung allgemeiner Arbeitstugenden und sozialer Kompetenzen abstellen. (DIPF/Orig.)

Additional file 1. Instruments and operationalisation of constructs.

Although research generally attests to the beneficial role of transformational leadership (TL) for school effectiveness, little empirical work has distinguished individual- from group-focused dimensions of TL and analysed their relationships with target variables at the individual and group level of followers simultaneously. Using a dual effects model of TL, the present study aims to fill this gap. It examines the dimensional structure of principals’ TL behaviours and their prognostic value for teachers’ self- and group-referential efficacy beliefs. Additionally, contextual dependencies of leadership effects are considered through the moderating role of a principal's span of control. Based on questionnaire data of 1,702 teachers in 118 Swiss schools, doubly latent ML-SEMs specify moderated dual effects of TL on both teacher and school levels of analysis. Results convey empirically separable latent sub-dimensions of TL (individual-/group-focused), which (a) characterise systematic differences in the leadership behaviours of the investigated principals and (b) substantially predict variations in the mean-levels of both teacher and collective efficacy between their respective schools. TL-collective efficacy relations are stronger in close leadership situations (low span of control) than in distant ones.