10.18710/KFKYBJ Feddersen, Niels Boysen Niels Boysen Feddersen https://orcid.org/0000-0002-3670-9981 NTNU – Norwegian University of Science and Technology DataverseNO 2023 Social Sciences football psychology sport psychology performance psychology NTNU – Norwegian University of Science and Technology NTNU – Norwegian University of Science and Technology NTNU – Norwegian University of Science and Technology Feddersen, Niels Boysen Niels Boysen Feddersen NTNU – Norwegian University of Science and Technology 2023-02-02 2023-02-07 10.1080/10413200.2022.2134506 10.18710/KFKYBJ/ZUQI2J 10.18710/KFKYBJ/HZAGU5 10.18710/KFKYBJ/3BDOYK 10.18710/KFKYBJ/43FGQC 231722 190852 153241 2532 application/pdf application/pdf application/pdf text/plain 1.0 Creative Commons CC0 1.0 Universal Public Domain Dedication. The repository includes interview guides, focus group guides, and other supplementary data from the research study titled: Modernising Sport Psychology in Football. The Norwegian Centre granted the study ethical clearance for Research Data (NSD) with reference: 220245