TY  - JOUR
A1  - Lazarides, Rebecca
A1  - Dietrich, Julia
A1  - Taskinen, Paeivi H.
T1  - Stability and change in students' motivational profiles in mathematics classrooms
BT  - The role of perceived teaching
JF  - Teaching and teacher education : an international journal of research and studies
N2  - Person-centered research has shown that individuals can be assigned to different motivational profiles, but only scattered studies have addressed motivational profiles in specific domains. We investigated the stability and change in motivational profiles in mathematics classrooms and examined how perceived teaching predicted changes in profile membership. Data for this study stemmed from the PISA-I Plus study (N=6020). Latent profile analysis identified four motivational patterns: Medium, Low, High and Highly confident, hardly interested. Stability in profiles from grade 9 to 10 was typical. Instructional clarity and teaching for meaning predicted changes in profile membership.
KW  - motivation in mathematics
KW  - Latent profile analysis
KW  - Expectancy-value theory
KW  - Instructional quality
KW  - Adolescence
Y1  - 2018
U6  - https://doi.org/10.1016/j.tate.2018.12.016
SN  - 0742-051X
VL  - 79
SP  - 164
EP  - 175
PB  - Elsevier
CY  - Oxford
ER  - 
TY  - JOUR
A1  - Hoffmann, Svenja
A1  - Warschburger, Petra
T1  - Patterns of body image concerns in adolescence and early adulthood
BT  - a latent profile analysis
JF  - Eating Behaviors
N2  - The present study aimed at identifying latent profiles of body image concerns in adolescents and young adults. Subsequently, associations between these profiles and potentially harmful behaviors are examined. Self-report data of 758 male and female adolescents, aged 14 to 22 years, were analyzed. Participants provided demographic and anthropometric data and completed surveys on weight/shape and muscularity concern as well as on disturbed eating behaviors and dysfunctional exercise. Latent profile analyses of weight/shape concern and muscularity concern were performed separately for each gender. The analyses indicated three-class solutions in men and women. In both genders, the inconspicuous class, characterized by small amounts of weight/shape and muscularity concerns, was the largest one (86% in men, 68% in women). Whereas 10% of the men and 23% of the women were assigned to the borderline class, 4% of the men and 8% of the women formed the conspicuous class (marked weight/shape and muscularity concerns). Between genders, the degrees of muscularity concern differed in the borderline and inconspicuous classes, while the degrees of weight/shape concern differed in the inconspicuous class only. The comparable degrees of weight/shape and muscularity concerns in men and women in the affected classes underline the relevance of both aspects in both genders. Classes could be distinguished by harmful behaviors, like restrained eating or emotional exercise, proving the clinical significance of body image concerns.
KW  - Weight concern
KW  - Shape concern
KW  - Muscularity concern
KW  - Adolescent
KW  - Young adult
KW  - Latent profile analysis
Y1  - 2018
U6  - https://doi.org/10.1016/j.eatbeh.2018.02.002
SN  - 1471-0153
SN  - 1873-7358
VL  - 29
SP  - 28
EP  - 34
PB  - Elsevier
CY  - Amsterdam
ER  -