Improving survival rates in children and adolescents with malignant bone tumours, paved the way to the application of new surgical extremity-salvage techniques. For the surgical treatment of... Show moreImproving survival rates in children and adolescents with malignant bone tumours, paved the way to the application of new surgical extremity-salvage techniques. For the surgical treatment of malignant bone tumours of the lower extremity, there are a number of resection options (amputation, limb sparing, and rotationplasty) available. Each option has its own indication and after the surgery different advantages and disadvantages. The debate is whether limb-salvage or ablative surgery is advantageous for the individual patient. Purpose of the studies presented in this thesis are evaluate and compare QoL, functional ability and physical activity levels among children and young adults in the first years after bone cancer surgery of the leg. A cross sectional and a prospective study were conducted in the Dutch university bone cancer centres. The results of the cross-sectional study show that outcomes are equivalent for those undergoing limb salvage or ablative surgery. The results of the prospective study showed that; survivors improve in the two years following resection of the bone tumour and the resulting limb-sparing or ablative surgery at all domains evaluated, with the exception of the mental QoL domains. These improvements were most pronounced over the first year after surgery. Show less
Cross-cultural research shows that cultural frameworks provide guidance on what to feel and when, and how to express emotions from a young age. These cultural variations can cause misinterpretation... Show moreCross-cultural research shows that cultural frameworks provide guidance on what to feel and when, and how to express emotions from a young age. These cultural variations can cause misinterpretation and misunderstanding and are especially relevant for ethnic minority groups, who may be described as living ‘in between’ cultures. This thesis examines the extent to which Moroccan-Dutch adolescents’ emotional functioning can be considered in between cultures. Their emotion awareness, acknowledgment of social emotions, anger regulation, and anger communication was compared with those of their Dutch peers and with those of their peers living in Morocco. The thesis also addresses the adaptiveness of these aspects of emotional functioning in terms of psychological functioning. The results reveal that, overall, Moroccan-Dutch adolescents’ emotional functioning shows more similarities with that of their Dutch than their Moroccan peers. Although these ‘Dutch’ emotion patterns do not always seem adaptive for Moroccan-Dutch adolescents’ psychological wellbeing, the findings suggest that their emotional functioning in peer situations is a product of the Dutch culture. Show less
This thesis attempted to contribute to the quest of practitioners and researchers to find guidelines on how to establish a healthy motivational orientation in the classroom. This is not an easy... Show moreThis thesis attempted to contribute to the quest of practitioners and researchers to find guidelines on how to establish a healthy motivational orientation in the classroom. This is not an easy objective. There are many theories and concepts regarding motivation. We provided an overview in Chapter 2 of 36 motivation theories to gain more insight into what motivation is and how it works in the classroom. In Chapter 3 we highlighted motivation constructs derived from different motivation perspectives that can predict classroom performance together. Further, we presented the effects of a motivational intervention on intrinsic motivation, persistence, self-regulatory skills and performance (Chapter 4); we distinguished between the effects for boys and girls (Chapter 5); and investigated the applicability of self-determination theory across situations (Chapter 6). This chapter will start by presenting and elaborating on our results. We use the metaphor of the motivation cake that was introduced in the first chapter of this thesis to illustrate our conclusions. Subsequently, we discuss study limitations and present our suggestions for future research as well as the theoretical and practical implications of the present thesis. Show less
Maric, M.; Heyne, D.A.; Widenfelt, B.M. van; Westenberg, P.M. 2011
The Children’s Negative Cognitive Error Questionnaire (CNCEQ) is commonly used to measure four errors in young people’s thinking, but research has failed to support the factorial validity of the... Show moreThe Children’s Negative Cognitive Error Questionnaire (CNCEQ) is commonly used to measure four errors in young people’s thinking, but research has failed to support the factorial validity of the measure. The primary objective of the present study was to examine the factor structure of a refined and extended version of the CNCEQ. Revision of the CNCEQ involved the exclusion of items rated as contaminated, and the addition of items measuring cognitive errors closely associated with anxiety (‘threat conclusion’ and ‘underestimation of the ability to cope’). A secondary objective was to determine the relation between the negative cognitive errors and anxiety. Principal component analysis of data from 481 children and adolescents indicated five distinct negative cognitive error subscales labeled ‘underestimation of the ability to cope’, ‘personalizing without mind reading’, ‘selective abstraction’, ‘overgeneralizing’, and ‘mind reading’ which contained the new ‘threat conclusion’ items. Confirmatory factor analysis in an independent sample of 295 children and adolescents yielded further support for the five-factor solution. All cognitive errors except ‘selective abstraction’ were correlated with anxiety. Multiple regression analysis indicated that the strongest predictors of anxiety were the two subscales containing new items, namely ‘underestimation of the ability to cope’ and ‘mind reading’. The results are discussed with respect to further development of the instrument so as to advance the assessment of distorted cognitive processing in young people with internalizing symptoms. Show less
