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Authors
Wirag, Andreas
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Article History
Received: 17 February 2025
Accepted: 11 December 2025
First Online: 6 January 2026
Competing interests
: The author declares no competing interests.
: Ethical approval for this study was obtained from the Ethics Committee of Georg-August-Universität Göttingen (Approval No.: 22410). Approval was granted on 01.05.2021. All procedures adhered to the tenets of the Declaration of Helsinki.
: The data used in this study was collected under the general waiver of individual student consent if the purpose of the study is quality development in schools (Qualitätsentwicklung in Schule), as stipulated by the German state of Lower Saxony (Niedersachsen). Source: Surveys and Data Collection in Schools (Umfragen und Erhebungen in Schulen), Abbreviation: SchUmfRdErl,NI, Legal Type: Administrative Regulation (Verwaltungsvorschrift), Issuing Authority: Lower Saxony (Niedersachsen), Classification Number: 22410, §4.d, Date: 01.01.2022.
