Items where Author is "Helenius, Jenni"

Read, Sanna ORCID: 0000-0002-5532-8746, Kiuru, Noona, Helenius, Jenni, Junttila, Niina and Salmela-Aro, Katariina (2025) Is social connectedness still in decline after the covid-19 pandemic? Cohort trends in secondary school students in Finland between 2017 and 2023. BMC Psychology. ISSN 2050-7283 (In Press)

Read, Sanna ORCID: 0000-0002-5532-8746, Salmela-Aro, Katariina, Kiuru, Noona, Helenius, Jenni and Junttila, Niina (2024) The cohort trends of social connectedness in secondary school students in Finland between 2017 and 2021. PLOS ONE, 19 (10). ISSN 1932-6203