Sport treiben ein Leben lang?

Current demographic development attracts the attention of the sports sciences to the determinants of sport participation among people in the second half of life. Due to various life experiences in this age cohort, the question arises as to how much sports experiences affect contemporary sport participation. Starting with research into the life course people had followed, persons aged over 50 years were interviewed retrospectively about their current and former participation in sporting activities. Results show that sport participation of many years’ standing in the first half of life in particular, as well as sport activities in young adulthood, has a positive affect on the course of sport participation in the second half of life. Furthermore, period and cohort effects indicate that sports commitment is moderately affected by the variables sex and social environment.     

What is influencing the dropout behaviour of youth players from organised football?

This article provides a systematised review of relevant factors influencing youth dropout from organised football. The findings of identified 30 studies concerning dropout behaviour in football indicate the multidimensional influences of intrapersonal, interpersonal and structural factors. Most studies investigate the influence of intrapersonal factors. Accordingly, negatively perceived football competence, lack of motivation, goals and incentives and a lower relative age lead to a higher dropout rate. At the interpersonal level, lack of support from significant others (parents, peers, coach) and a disadvantageous team situations promote withdrawal from organised youth football. A lack of organisational and structural conditions promote dropout too. Based on this review, the following identified research gaps should be addressed in future studies: (1) analysis of individuals’ dropout decision as a selection of available alternatives, (2) referencing to corresponding contextual features of dropout behaviour, (3) the longitudinal perspective at dropout behaviour and (4) the perspective of intervention. Furthermore, some practical implications can be derived for the management of youth members in football clubs: (1) strengthen and develop successive coaching competencies, (2) reflection of own club philosophy against the background of divergent expectations of adolescents, (3) measures to promote identification with the football club and (4) anchoring of orientation regarding to young players as a central objective in the club.     

Evaluation of Maximal Reliability for Unidimensional Measuring Instruments With Correlated Errors

A latent variable modeling method for studying maximal reliability of unidimensional multicomponent measuring instruments with correlated errors is outlined. In the presence of correlation between 2 residual terms, the procedure allows one to point and interval estimate the reliability of the linear combination of the scale components that possesses the highest possible reliability coefficient. The approach is readily applicable with popular latent variable modeling software and also provides an alternative scoring rule to the widely used overall sum score for homogeneous psychometric scales. The discussed method is illustrated with a numerical example.     

Making settler colonialism concrete: agentive materialism and habitational violence in Palestine

ABSTRACT

Through home sealing in Palestine, the Israeli state utilizes the agentive materialism and political valence of concrete as settler colonial state building tools. By rendering the home uninhabitable, the walls of the home are transformed into border walls, while the sealed home rhetorically functions as a relic of collective punishment. Home sealing is an expression of the Israeli state's permanent anxiety surrounding Palestinian compositional power. This essay demonstrates the urgency for approaching settler-colonial state logics through a lens rooted in decolonial approaches to materialist rhetoric and rhetorical studies of space and place.