Marianne Skogbrott Birkeland

TL;DR: The structural equation analysis showed that competence and relatedness satisfaction fully mediated the association between participation in activities and life satisfaction, and Autonomy satisfaction had a direct positive effect on life satisfaction but did not show any mediation effect.

TL;DR: This study used latent growth mixture modelling to characterize three trajectory classes of global self esteem between ages 14 and 23 years: consistently high, chronically low, and U-shaped; the respondents in three classes showed statistically significant different levels of life satisfaction, depressive mood, somatic complaints and insomnia at age 30.

TL;DR: A longitudinal study of 1,090 Norwegian adolescents from the age of 13–23 that explored whether peer acceptance can act as a moderator and protect global self-esteem against the negative effects of experiencing low closeness in relationships with parents found that peer acceptance was found to have a general protective effect on globalSelf-esteem for all adolescents.

TL;DR: There were gender and developmental variations in the relative contributions of parents and peers for the slope and quadratic growth and in the contribution of BMI to body image satisfaction.

TL;DR: In this paper, a 10-year longitudinal study with a sample of 924 adolescents was conducted, and data were collected 8 times from the age of 13 years to 23 years.