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This paper presents the psychometric properties of the MoMo-AFB (Bos, Worth, Opper, Oberger & Woll, 2009), a questionnaire designed to measure the physical activity of children and adolescents. The MoMo-AFB consists of 28 items, covering the fields of everyday physical activity, sports within and outside of organised clubs, physical education as well as compliance with physical activity guidelines. A study was conducted with 109 boys and 87 girls aged between 9 and 17 years. The MoMo-AFB was given on two separate occasions to evaluate reliability and was compared with accelerometry data of ActiGraph GT1X to evaluate validity. The overall kappa/weighted kappa coefficient for the one-week testretest reliability was .66 (SD = .19) and the overall intraclass correlation (ICC) .68. Self-reported and accelerometer-measured average weekly time spent performing moderate to vigorous physical activity were significantly correlated (Spearman r = .29). Regarding reliability and validity, the MoMo-AFB is comparable with other international published physical activity questionnaires for adolescents.
The term solidarity is lacking a precise definition despite being embedded as primary law in the EU treaties and regardless of its pivotal role in the current debate on the euro crisis. Once the semantic core is unearthed we sketch three dimensions of European solidarity (motives, references, level of action). Through this we shall distil three ideal types of an intergovernmental European solidarity: a federal, an organic and a distributive type. Empirically we assign the most relevant measures, which were discussed and partially enacted in the course of the euro crisis, to the three ideal types where we identify an increasing tendency towards a distributive solidarity. Once the first elements will be upgraded to a full-blown distributive solidarity through further integration, several risks arise from a normative perspective.
The preference for fruits and vegetables is the main predictor for the longtime healthy eating behavior. There are many factors which affect the development of food preferences. The familiarity with different foods seems to be a special aspect associated with the corresponding preference. To establish a preference for fruits and vegetables during early childhood, we need to know more about the factors that affect this preference development. So far, research has mostly concentrated on the food intake and less on the corresponding preference. Additionally, it is often based on studies of the mere-exposure effect or on older children and their ability to label fruits and vegetables correctly. Findings about the level of food familiarity in young children and its relation to the actual food preference are still missing. Our study focuses on different aspects of food familiarity as well as on their relationship to the child's preference and presents results from 213 children aged 2 to 10 years. Using standardized photos, the food preference was measured with a computer-based method that ran automatically without influence from parents or interviewer. The children knew fewer of the presented vegetables (66 %) than fruits or sweets (78 % each). About the same number of vegetables (63 %) had already been tasted by the children and were considered tasty. Only 48 % of the presented vegetables were named correctly - an ability that increases in older children. Concerning the relationship between the familiarity with vegetables and their preference, the different familiarity aspects showed that vegetables of lower preference were less often recognized, tasted, considered tasty, or named correctly.
Cognitive flexibility in adolescent patients with unipolar affective disorders - gender differences
(2013)
Objective: Several studies have revealed impairments in cognitive functions among patients with affective disorders (AD). However, to date there are few neuropsychological studies on cognitive flexibility among adolescent patients with AD, especially on gender differences in AD. Here, we investigate cognitive functions, especially cognitive flexibility, in adolescent patients with unipolar AD (UAD) compared to a healthy control group (CG). Method: The study population consists of 17 male patients (M-age = 15.4 +/- 1.3) and 22 female patients with UAD (M-age = 15.6 +/- 1.4) as well as 20 male (M-age = 16.0 +/- 1.0) and 30 female (M-age = 15.7 +/- 0.9) healthy adolescents. A neuropsychological test battery was conducted, and depressive symptoms, psychological stress, and intelligence were also assessed. Results: The analyses revealed no significant group differences regarding cognitive flexibility or visual processing speed, albeit slight better performance in motor processing speed for the CG. Furthermore, no gender differences were observed regarding cognitive flexibility, though female subjects general displayed better performance in processing speed. Conclusions: Overall, there are no indications for serious deficits and specific gender differences in cognitive flexibility or processing speed in adolescent patients with UAD. Independent of psychological distress, female subjects seem to have some advantages in processing speed.
This article examines the relationships between family background and reading motivation (RM) as well as reading frequency in a sample of 156 high school students. To test the effects of family background (migration status, books at home, parents' appreciation of reading, parents' motivating practices), hierarchical regression analyses were applied. In these analyses, students' perceptions of reading incentives provided by the school and peer group were taken into account as control variables. Parents' learning-oriented appreciation of reading and motivating practices emerged as important predictors of intrinsic and extrinsic RM. Reading frequency was predicted by the number of books at home and parents' motivating practices. The effects of family background on extrinsic RM and reading frequency remained stable, even after controlling for reading incentives provided by the school and peer group.
The consumption of media violence and aggressive behavior were assessed three times in a sample of N=1,052 German adolescents with and without migration background over a period of two years with 12-month intervals. The adolescents in the two groups, who were in grades 7 and 8 at T1, were matched by gender, age, type of school, and academic achievement. Students in the migrant group reported higher consumption of violent media. At T3, they showed more physical but less relational aggression than their peers of German background. Cross-lagged panel analyses showed parallel associations between media violence use and aggression in both groups: Media violence consumption at T1 and T2 predicted physical aggression at T2 and T3 independent of ethnic background. The reverse path from physical aggression to media violence consumption was nonsignificant. No link was found between media violence use and relational aggression over time.