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41.
Andreas Fröberg Christina Berg Christel Larsson Cecilia Boldemann Anders Raustorp 《Measurement in physical education and exercise science》2017,21(3):154-160
The purpose of the current study was to investigate how combinations of different epoch durations and cut-points affect the estimations of sedentary time and physical activity in adolescents. Accelerometer data from 101 adolescents were derived and 30 combinations were used to estimate sedentary time, light, moderate, vigorous, and combined moderate-to-vigorous physical activity. Data were analyzed with repeated measurement analyses of variance. Large differences of sedentary time and times of different physical activity intensities were observed between 1 s and longer epoch durations using virtually all cut-points. Generally, sedentary time, moderate physical activity, vigorous physical activity, and combined moderate-to-vigorous physical activity progressively decreased, whereas light physical activity increased with longer epoch durations. The extreme differences between cut-points were large and increased with longer epoch durations for sedentary time and for all physical activity intensities except for vigorous physical activity per epoch duration. Caution is required when cross-comparing studies using different epoch durations and cut-points. To accurately register adolescents’ spontaneous intermittent physical activity behavior, short epoch durations are recommended. 相似文献
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Cecilia Wainryb 《Child development》1993,64(3):924-933
This study examined how moral judgments are applied to events in other cultures. It was hypothesized that subjects make both universal and relativistic judgments, contingent on the types of beliefs held in the culture to which the moral judgments were applied. It was furthermore expected that subjects would be both relativists and universalists at all ages. 72 subjects (aged 11–9, 15–10, and 21–3 years) were asked to apply moral judgments which they had made about a familiar context to 2 types of cultures, 1 where different informational beliefs were held and 1 where different moral beliefs were held. The results confirmed the hypotheses. Most subjects, at all ages, contextualized their moral judgments when they applied them to cultures with different informational beliefs but made nonrelativistic judgments with respect to cultures with opposing moral beliefs. Furthermore, subjects justified their relativistic judgments on informational grounds and their nonrelativistic judgments on moral grounds. These findings demonstrated that nonrelativistic and relativistic thinking coexist throughout a wide age range and underscored the need to distinguish between moral and nonmoral relativism when studying developmental patterns in the moral domain. 相似文献
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Anne Gaml-Sørensen Nis Brix Andreas Ernst Lea Lykke Harrits Lunddorf Cecilia Høst Ramlau-Hansen 《Child development》2021,92(4):1494-1508
This cohort study, including 15,810 children born 2000–2003 in Denmark, aimed to investigate the association between father absence in pregnancy or during childhood and pubertal development in girls and boys. The children were followed from 11 years of age and throughout pubertal development. Mean age differences according to exposure groups were estimated for each pubertal marker separately and for a combined pubertal marker. The results suggested that father absence in pregnancy and during childhood was associated with earlier pubertal development in girls, and father absence from late childhood was associated with earlier pubertal development in boys. The paternal investment theory, the psychosocial acceleration theory and the energetics theory were explored, and did not seem to explain the observed associations. 相似文献
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Peter Kutnick Zhiyong Zhu Cecilia Chan Rosanna Yuen-Yan Chan Betty Pok-Yee Lee Veronica Ka Wai Lai 《Compare》2018,48(4):608-629
School-based pipelines/routes for university and technical engineering education are recognised as important for economic development and the high-school years are critical for shaping students’ career aspirations and attitudes. This study examined a range of attitudes/experiences on the aspirations of secondary students to pursue engineering education and vocation. Experiential/attitudinal aspects covered demographic characteristics, family/school support, practical learning experiences, curricular/extra-curricular experiences, attitudes, perceptions and engineering-efficacy that may affect aspirations. A validated questionnaire capturing these variables was administered to respective samples of secondary school students from four Chinese geo-engineering regions (Beijing, Guangzhou, Hong Kong and ShanXi; 5965 students) that represent differing degrees of industrialisation. Comparative analyses across regions show ‘doing’ engineering is key to motivating students’ aspirations; while regional variations suggest that schooling and family factors are generally more significant in industrialising Mainland cities, and extracurricular opportunities and personal factors are more significant for students in post-industrial Hong Kong. 相似文献
48.
Maddalena Boccia Francesca Vecchione Antonella Di Vita Simonetta D'Amico Cecilia Guariglia Laura Piccardi 《Child development》2019,90(2):462-470
Notwithstanding its well-established role on high-demanding spatial navigation tasks during adulthood, the effect of field dependence–independence during the acquisition of spatial navigation skills is almost unknown. This study assessed for the first time the effect of field dependence–independence on topographical learning (TL) across the life span: 195 individuals, including 54 healthy young-adults (age-range = 20–30), 46 teenagers (age-range = 11–14), and 95 children (age-range = 6–9) participated in this study. Field dependence–independence interacted with age in predicting TL. Also during childhood higher field independence was associated with better performances but not later in the life, that is, during adolescence and adulthood. This result suggests that field dependence–independence may have a role in fostering the acquisition of TL. 相似文献
49.
Tse Linda Fung Ling Siu Andrew Man Hong Li-Tsang Cecilia Wai Ping 《Reading and writing》2019,32(2):265-284
Reading and Writing - This study developed and validated a Chinese name writing scale (CNWS) for evaluating early handwriting skills of kindergarten children. We then used the validated CNWS to... 相似文献
50.
Cecilia Nguyen Elizabeth J. Bradshaw David Pease Cameron Wilson 《Sports biomechanics / International Society of Biomechanics in Sports》2014,13(2):154-165
This study aimed to determine if starting with the feet above the water (FAW) in male backstroke swimming resulted in faster start times (15-m time) than when the feet were underwater (FUW). It was hypothesised that setting higher on the wall would generate increased horizontal force and velocity, resulting in quicker starts. Twelve high-level male backstrokers performed three trials of the FAW and FUW techniques. A biomechanical swimming testing system comprising one force plate (1,000 Hz), four lateral-view (100 Hz), and five overhead (50 Hz) video cameras captured the swimmers' performance. Data for each participant's fastest trial for each technique were collated, grouped, and statistically analysed. Analysis included Wilcoxon, Spearman Rho correlation, and regression analysis. Wilcoxon results revealed a significantly faster start time for the FAW technique (p < 0.01). Peak horizontal force was significantly smaller for FAW (p = 0.02), while take-off horizontal velocity was significantly greater (p = 0.01). Regression analysis indicated take-off horizontal velocity to be a good predictor of start time for both techniques, and the horizontal displacement of the centre of mass for the FAW start. 相似文献