Andreas Stenling

The developmental activities of elite soccer players aged under-16 years from Brazil, England, France, Ghana, Mexico, Portugal and Sweden

Abstract The developmental activities of 328 elite soccer players aged under-16 years from Brazil, England, France, Ghana, Mexico, Portugal and Sweden were examined using retrospective recall in a cross-sectional research design. The activities were compared to the early diversification, early specialisation, and early engagement pathways. Players started their involvement in soccer at approximately 5 years of age. During childhood, they engaged in soccer practice for a mean value of 185.7, s = 124.0 h · year−1, in soccer play for 186.0, s = 125.3 h · year−1, and in soccer competition for 37.1, s = 28.9 h · year−1. A mean value of 2.3, s = 1.6 sports additional to soccer were engaged in by 229 players during childhood. Players started their participation in an elite training academy at 11 to 12 years of age. During adolescence, they engaged in soccer practice for a mean value of 411.9, s = 184.3 h · year−1, in soccer play for 159.7, s = 195.0 h · year−1, and in soccer competition for 66.9, s = 48.8 h · year−1. A mean value of 2.5, s = 1.8 sports other than soccer were engaged in by 132 players during this period. There were some relatively minor differences between countries, but generally the developmental activities of the players followed a mixture of the early engagement and specialisation pathways, rather than early diversification.

Transformational leadership and well-being in sports: the mediating role of need satisfaction.

The present study examined the direct and indirect effect of coaches’ transformational leadership on athlete well-being. Participants were 184 floorball players who completed questionnaires about perceived transformational leadership from their coach, need satisfaction, and sport-related well-being. The analyses revealed positive relationships between perceived transformational leadership, need satisfaction, and well-being. The results also demonstrated that the positive effect of transformational leadership on athletes’ well-being was mediated by athletes’ need satisfaction. Furthermore, the results from this study add the previously unexplored outcome athlete well-being to the positive effects of transformational leadership in sports, thereby extending our knowledge of the transformational leadership process.

Profiles of perfectionism, parental climate, and burnout among competitive junior athletes

Recent research suggests that groups of athletes which differ in terms of perfectionism and perceptions of achievement climate can be identified. Moreover, these groups also differ in terms of burnout symptoms. The purpose of the current study was to extend this research by examining whether discernible groups can be identified based on scores of perfectionism and perceptions of parent‐initiated climate and, then, whether these groups differ in terms of burnout. Two‐hundred and thirty‐seven Swedish junior athletes (124 males and 113 females aged 16–19) from a variety of sports completed measures of athlete burnout, multidimensional perfectionism, and parent‐initiated motivational climate. Latent profile analysis identified four groups: non‐perfectionistic athletes in a task‐involving climate, moderately perfectionistic athletes in a task‐involving climate, highly perfectionistic athletes in a task‐involving climate, and highly perfectionistic athletes in a mixed climate. The latter two groups reported higher levels of burnout in comparison to other groups. The findings suggest that junior athletes high in perfectionism may be at comparatively greater risk to burnout and that this may especially be the case when they perceive their parents to emphasize concerns about failure and winning without trying ones best.

Bayesian Structural Equation Modeling in Sport and Exercise Psychology

Bayesian statistics is on the rise in mainstream psychology, but applications in sport and exercise psychology research are scarce. In this article, the foundations of Bayesian analysis are introduced, and we will illustrate how to apply Bayesian structural equation modeling in a sport and exercise psychology setting. More specifically, we contrasted a confirmatory factor analysis on the Sport Motivation Scale II estimated with the most commonly used estimator, maximum likelihood, and a Bayesian approach with weakly informative priors for cross-loadings and correlated residuals. The results indicated that the model with Bayesian estimation and weakly informative priors provided a good fit to the data, whereas the model estimated with a maximum likelihood estimator did not produce a well-fitting model. The reasons for this discrepancy between maximum likelihood and Bayesian estimation are discussed as well as potential advantages and caveats with the Bayesian approach.

The only constant is change: analysing and understanding change in sport and exercise psychology research

ABSTRACT The ability to examine within-person change is essential to test process-based theories in sport and exercise psychology. Longitudinal data, whether experimental or observational, are prerequisites to be able to examine change processes, but most longitudinal studies in sport and exercise psychology focus solely on between-person/group differences, not on within-person change. In this review, we (1) provide researchers in the sport and exercise psychology field with a framework for longitudinal research that focuses on within-person change; (2) provide an overview of how researchers in sport and exercise psychology currently analyse longitudinal data, which showed that most longitudinal studies focus on between-person/group differences; and (3) provide examples of statistical models for analysing longitudinal data that correspond to the framework for longitudinal research. In the examples, we focus on latent variable modelling, such as latent growth-curve modelling and latent change-score modelling, which capture within-person change. We argue that there is a need for stronger emphasis on the match among theory of change, temporal design, and statistical models when designing longitudinal studies in sport and exercise psychology.

How to Measure Coach Burnout: An Evaluation of Three Burnout Measures

Although coach burnout has been studied for 30 years, what measure to use in this context has not yet been problematized. This study focuses on evaluating convergent and discriminant validity of three coach burnout measures by using multi-trait/multi-method analysis (CT-C[M-1]) model. We choose Maslach Burnout Inventory (MBI), the two dimensional Oldenburg Burnout Inventory (OLBI), and a coach version of Athlete Burnout Questionnaire (CBQ). Our analysis shows that MBI and OLBI cover similar definitions of exhaustion and depersonalization/disengagement and that CBQ measures somewhat different dimensions. A problem for OLBI is a lack of discriminant validity due to high correlations between exhaustion and disengagement. For lack of personal accomplishment/reduced sense of accomplishment CBQ measures a somewhat different construct than MBI. Although all three measures have advantages and disadvantages, we promote CBQ since it discriminates between dimensions and covers important aspects of burnout in a sports context that the other two do not cover.

Things We Still Haven't Learned (So Far)

Null hypothesis significance testing (NHST) is like an immortal horse that some researchers have been trying to beat to death for over 50 years but without any success. In this article we discuss the flaws in NHST, the historical background in relation to both Fishers and Neyman and Pearsons statistical ideas, the common misunderstandings of what p < .05 actually means, and the 2010 APA publication manuals clear, but most often ignored, instructions to report effect sizes and to interpret what they all mean in the real world. In addition, we discuss how Bayesian statistics can be used to overcome some of the problems with NHST. We then analyze quantitative articles published over the past three years (2012-2014) in two top-rated sport and exercise psychology journals to determine whether we have learned what we should have learned decades ago about our use and meaningful interpretations of statistics.

Response-Order Effects in Survey Methods: A Randomized Controlled Crossover Study in the Context of Sport Injury Prevention

Consistency tendency is characterized by the propensity for participants responding to subsequent items in a survey consistent with their responses to previous items. This method effect might contaminate the results of sport psychology surveys using cross-sectional design. We present a randomized controlled crossover study examining the effect of consistency tendency on the motivational pathway (i.e., autonomy support → autonomous motivation → intention) of self-determination theory in the context of sport injury prevention. Athletes from Sweden (N = 341) responded to the survey printed in either low interitem distance (IID; consistency tendency likely) or high IID (consistency tendency suppressed) on two separate occasions, with a one-week interim period. Participants were randomly allocated into two groups, and they received the survey of different IID at each occasion. Bayesian structural equation modeling showed that low IID condition had stronger parameter estimates than high IID condition, but the differences were not statistically significant.

Fear of failure, psychological stress, and burnout among adolescent athletes competing in high level sport.

The purpose of this study was to investigate fear of failure in highly competitive junior athletes and the association with psychological stress and burnout. In total 258 athletes (152 males and 108 females) ranged in age from 15 to 19 years (M = 17.4 years, SD = 1.08) participated. Athletes competed in variety of sports including both team and individual sports. Results showed in a variable‐oriented approach using regression analyses that one dimension, fear of experiencing shame and embarrassment had a statistically significant effect on perceived psychological stress and one dimension of burnout, reduced sense of accomplishment. However, adopting a person‐oriented approach using latent class analysis, we found that athletes with high levels of fear failure on all dimensions scored high on burnout. We also found another class with high scores on burnout. These athletes had high scores on the individual‐oriented dimensions of fear of failure and low scores on the other oriented fear of failure dimensions. The findings indicate that fear of failure is related to burnout and psychological stress in athletes and that this association is mainly associated with the individual‐oriented dimensions of fear of failure.

Behavioral activation versus physical activity via the internet: A randomized controlled trial

BACKGROUND A major problem today is that only about fifty percent of those affected by depression seeks help. One way to reach more sufferers would be by offering easily accessible internet based treatments. The purpose of this study was to compare/evaluate four therapist supported internet administered treatments. METHOD/RESULTS Two hundred eighty six participants were included. The treatment period lasted twelve weeks, consisting of the following treatments: 1) physical activity without treatment rational, 2) physical activity with treatment rational, 3) behavioral activation without treatment rational and 4) behavioral activation with treatment rational. All groups (including a control-group) showed a significant decrease in depressive symptoms. When the treatment groups were pooled and compared to the control group, there were significant differences from pretest to posttest (Hedges gav treatment =1.01, control group =0.47). This held true also when each of the four treatment groups was compared to the control group, with one exception: Physical activity without treatment rationale. LIMITATIONS The differences between how many modules the participants completed could indicate that there are other factors than the treatments that caused the symptom reduction, however, the dose-response analysis did not detect any significant differences on account of modules completed. CONCLUSIONS The results support the positive effects of internet administered treatments for depression, and highlights the importance of psychoeducation, which tends to affect both the treatment outcome and the probability of remaining in treatment. These aspects need to be considered when developing and conducting new treatments for depression, since they would increase the likelihood of positive treatment outcomes.