Journal publications

• Hagen, Ruben V.; Haga, Monika; Sigmundsson, Hermundur; Lorås, Håvard. (2022) The association between academic achievement in physical education and timing of biological maturity in adolescents. PLOS ONE. vol. 17 (3).
• Hagen, Ruben V.; Lorås, Håvard; Sigmundsson, Hermundur; Haga, Monika. (2022) Association between Motor Competence, Physical Fitness and Academic Achievement in Physical Education in 13-16-Years-Old School Children. Frontiers in Sports and Active Living. vol. 3.
• Hagen, Ruben V.; Lorås, Håvard; Sigmundsson, Hermundur; Haga, Monika. (2021) The Association Between Pupil-Related Psychological Factors and Academic Achievement in Physical Education. Journal of teaching in physical education.
• Hagen, Ruben V.; Lorås, Håvard; Sigmundsson, Hermundur; Haga, Monika. (2020) The Relationship Between Pupils` Psychological Factors and Mark in Physical Education. Journal of Sport & Exercise Psychology (JSEP). vol. 42 (1).
• Hagen, Ruben V.; Phillips, Shaun. (2018) Reliability of Self-Regulated Repeated Sprint Performance in Male Professional Football Players. Idrottsforum.org - Nordic Sport Studies Forum.

Others

• Gjølme, Egil Galaaen; Hagen, Ruben V.; Ingebrigtsen, Jan Erik. (2021) Nidelven, stille, vakker eller livsfarlig?. Forskning for friluft . Norsk Friluftsliv; Hamar. 2021-12-01 - 2021-12-02.
• Gjølme, Egil Galaaen; Ingebrigtsen, Jan Erik; Hagen, Ruben V.. (2021) Nidelven, stille vakker eller livsfarlig?. Kroppsøvingskonferansen 2021 . Norges Idrettshøgskole; Oslo. 2021-06-04 - 2021-06-05.
• Hagen, Ruben V.; Haga, Monika; Sigmundsson, Hermundur; Lorås, Håvard. (2021) Biological Maturity Timing and Relative Age in Association with Pupils` Mark in PE in Lower Secondary School. Kroppsøvingskonferansen . Norges Idrettshøgskole; Oslo. 2021-06-03 - 2021-06-04.
• Hagen, Ruben V.; Lorås, Håvard; Sigmundsson, Hermundur; Haga, Monika. (2020) The Relationship Between Pupils` Psychological Factors and Mark in Physical Education. North American Society for the Psychology of Sport and Physical Activity Virtual Conference June 11–12, 2020 . North American Society for the Psychology of Sport and...; Vancouver (Virtual). 2020-06-11 - 2020-06-12.
• Gjølme, Egil Galaaen; Hagen, Ruben V.. (2019) Lærerstudenten hopper i elva for å hindre drukningsulykker. Adressa [Avis]. 2019-05-07.
• Gjølme, Egil Galaaen; Hagen, Ruben V.. (2019) Vil ha utendørs svømmeopplæring i skolen. NRK [TV]. 2019-05-03.
• Hagen, Ruben V.; Ness, Borgar; Gjølme, Egil Galaaen. (2019) "Death River". Researchers night . NTNU; Trondheim. 2019-09-27 - 2019-09-27.
• Hagen, Ruben V.; Gjølme, Egil Galaaen. (2018) Relative Age Effect and Biological Maturity Status in Physical Education: Do more mature pupils obtain a higher mark?. Kroppsøvingskonferanse 2018 . Norges Idrettshøgskole; Oslo. 2018-06-07 - 2018-06-08.