Qualter, P., Vanhalst, J., Harris, R., Van Roekel, E., Lodder, G., Bangee, M., Maes, M. &
Verhagen, M. (2015). Loneliness across the life span. Perspectives on Psychological
Science, 10(2), 250-264. https://doi.org/10.1177/1745691615568999
Quick, V., Nansel, T. R., Liu, D., Lipsky, L. M., Due, P. & Iannotti, R. J. (2014). Body size
perception and weight control in youth: 9-year international trends from 24 count¬
ries. International Journal of Obesity, 38(7), 988-994. https://doi.org/10.1038/
1j0.2014.62
Parto, M. (2011). Problem solving, self- efficacy, and mental health in adolescents:
Assessing the mediating role of assertiveness, Procedia - Social and Behavioral Sci¬
ences, 30, 644-648. https://doi.org/10.1016/j.sbspro.2011.10.125.
Racine, N., Eirich, R., Cooke, J., Zhu, J., Pador, P., Dunnewold, N. & Madigan, S. (2022).
When the bough breaks: A systematic review and meta-analysis of mental health
symptoms in mothers of young children during the COVID-19 pandemic. Infant
Ment Health J, 43, 36- 54. https://doi.org/10.1002/imhj.21959
Radloff, L. S. (1977). CES-D scale: A self report depression scale for research in the
general populations. Applied Psychological Measurement, 1, 385-401. https://doi.
org/10.1177/014662167700100306
Ramos, P., Moreno-Maldonado, C., Moreno, C. & Rivera, F. (2019). The role of body
image in internalizing mental health problems in spanish adolescents: An analysis
according to sex, age, and socioeconomic status. Frontiers in Psychology, 10(AUG),
1952. https://doi.org/10.3389/fpsyg.2019.01952
Ravens-Sieberer, U., Erhart, M., Devine, J., Gilbert, M., Reiss, E, Barkmann, C., Siegel,
N. A., Simon, A. M., Hurrelmann, K., Schlack, R., Hölling, H., Wieler, L. H. &
Kamak, A. (2022) Child and adolescent mental health during the COVID-19 pan¬
demic: Results of the Three-Wave Longitudinal COPSY Study. Journal of Adolescent
Health. 71(5), 570-578. https://doi.org/10.1016/j.jadohealth.
Rogers, S. L. & Cruickshank, T. (2021). Change in mental health, physical health, and
social relationships during highly restrictive lockdown in the COVID-19 pandemic:
evidence from Australia. Peer].9:e11767. https://doi.org/10.7717/peerj.1176
Rousseau, A. & Eggermont, S. (2018). Media ideals and early adolescents’ body image:
Selective avoidance or selective exposure? Body Image, 26, 50-59. https://doi.org/
10.1016/J.BODYIM.2018.06.001
Selye, J. (1964). Életünk és a stress. Akadémiai Kiadó.
Tahmassian, K. & Jalali, M. N. (2011). Relationship between self-efficacy and symptoms
of anxiety, depression, worry and social avoidance in a normal sample of students.
Iranian Journal of Psychiatry and Behavioral Sciences, 5(2): 91-98. https://brieflands.
com/articles/ijpbs-2981.pdf (2023. 08. 30.)