| 1. |
- Ivarsson, Andreas, 1984-, et al.
(författare)
-
Introduction to Sport Injuries
- 2020. - 4
-
Ingår i: Psychological Bases of Sport Injuries. - Morgantown : Fitness Information Technology (FiT) Publishing. - 9781940067407 ; , s. 3-9
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
|
|
| 2. |
|
|
| 3. |
- Ivarsson, Andreas, 1984-, et al.
(författare)
-
The predictive ability of the talent development environment on youth elite football players' well-being : a person-centered approach
- 2015
-
Ingår i: Psychology of Sport And Exercise. - Amsterdam : Elsevier. - 1469-0292 .- 1878-5476. ; 16:1, s. 15-23
-
Tidskriftsartikel (refereegranskat)abstract
- Objective: The objective of this study was to examine the predictive ability of perceived talent development environment (TDE) on the well-being of youth elite football players.Design: A field-based longitudinal design was employed.Method: The participants were 195 Swedish youth elite football players between 13 and 16 years of age enrolled at Swedish football academies. The players responded to questionnaires regarding their perceptions of their TDE, perceived stress, and well-being in the beginning of the competitive season 2012 (T1). On two more occasions, six and 12 months later, the players completed the stress and well-being questionnaires.Results: A latent class analysis, based on the TDEQ sub-scale scores at T1, revealed three classes of players with different perceptions of their TDE (one high quality, one moderate quality, and one poor qualityclass). A second-order multivariate latent growth curve model (factor-of-curves model) showed that the class of players perceiving the lowest TDE quality, experienced higher initial level of stress and lower initial level of well-being at T1 compared to the other two classes. Moreover, there were no significant differences in slopes for neither stress nor well-being between classes (the initial difference between the three groups, in well-being, remained stable over time).Conclusion: The results indicate that players perceiving their TDE as supporting and focusing on long term development seem to be less stressed and experience higher well-being than other players. Hence, in addition to facilitate sport-specific development and performance among youth athletes, high quality TDEs may be important for youth elite athletes' general well-being.
|
|
| 4. |
- Ivarsson, Andreas, et al.
(författare)
-
Things We Still Haven't Learned (So Far)
- 2015
-
Ingår i: Journal of Sport & Exercise Psychology (JSEP). - Champaign, IL : Human Kinetics. - 0895-2779 .- 1543-2904. ; 37:4, s. 449-461
-
Tidskriftsartikel (refereegranskat)abstract
- 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 Fisher's and Neyman and Pearson's statistical ideas, the common misunderstandings of what p < .05 actually means, and the 2010 APA publication manual's 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.
|
|
| 5. |
- Johnson, Urban, 1961-, et al.
(författare)
-
Afterword : Where Are We and Where May We Be Headed?
- 2020. - 4
-
Ingår i: Psychological Bases of Sport Injuries. - Morgantown : Fitness Information Technology (FiT) Publishing. - 9781940067407 ; , s. 311-316
-
Bokkapitel (övrigt vetenskapligt/konstnärligt)
|
|
| 6. |
|
|
| 7. |
- Stenling, Andreas, 1982-, et al.
(författare)
-
Bayesian Structural Equation Modeling in Sport and Exercise Psychology
- 2015
-
Ingår i: Journal of Sport & Exercise Psychology (JSEP). - Champaign, IL : Human Kinetics. - 0895-2779 .- 1543-2904. ; 37:4, s. 410-420
-
Tidskriftsartikel (refereegranskat)abstract
- 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.
|
|
| 8. |
- Weman Josefsson, Karin, 1975-, et al.
(författare)
-
Zooming in on the Effects: a Controlled Trial on Motivation and Exercise Behaviour in a Digital Context
- 2018
-
Ingår i: Current Psychology. - New York : Springer Science and Business Media LLC. - 1046-1310 .- 1936-4733. ; 37:1, s. 250-262
-
Tidskriftsartikel (refereegranskat)abstract
- This study is a description of a short-term digital exercise intervention based on the theoretical framework self-determination theory and tested in a controlled trial. The sample consisted of 318 adult women (n = 279) and men (n = 40) aged 23-67 years (M = 46.7; SD = 9.4) participating in a digital step contest provided by their employer. All participants completed study baseline measures via validated web-based versions of the following instruments: Basic Psychological Needs in Exercise Scale, Behavioural Regulations in Exercise Questionnaire-2, and Leisure Time Exercise Questionnaire. These measures were repeated twice, 3 weeks (post-intervention) and 6 weeks (follow-up) after study baseline. The experimental group had access to the intervention platform for three weeks. Data were analysed by analyses of covariance and mediation variable analysis. Results showed the intervention to affect exercise level and intensity as well as basic psychological need satisfaction and behavioural regulations. Intervention effects on amotivation post-intervention were found to mediate total exercise behaviour at follow-up. Moderation analyses showed intervention effects on light exercise to be stronger for those participants engaging in moderate or high levels of light activities at study baseline. Also, the effect on identified regulation was stronger for those with low levels of identified regulation at study baseline. This study adds to the knowledge on exercise motivation based on short-term intervention effects on level and intensity of exercise and physical activity. The use of mediating and moderating analyses uncover processes underlying the main intervention effects. Findings are discussed in relation to self-determination theory and previous research.
|
|
| 9. |
- Back, Jenny, 1984-, et al.
(författare)
-
Psychosocial risk factors for dropout from adolescents’ soccer
- 2023
-
Konferensbidrag (refereegranskat)abstract
- Background: The number of adolescents that drop out of soccer has increased the last decades. As soccer participation may represent a substantial part of adolescents’ physical activity, efforts to reduce drop-out are important. To develop effective prevention programs, knowledge about why adolescents drop out is needed.Purpose of the study: Using a prospective design, over three consecutive seasons, we investigate differences in motivation and coach autonomy support between adolescents that stay in soccer and adolescents that drop out.Methods: Participants were 738 adolescents (462 males and 275 females), 11-17 years old (M = 13.72, SD = 1.77) from soccer clubs in Sweden. Data about demographics, motivational regulations and coach autonomy support was collected in 2019, drop-out data at the end of seasons in 2019-2021. We used Mann-Whitney u-test to analyse potential differences between the two groups. A p-value <.05 was considered a statistically significant result. Cohen’s d effect size was calculated for each comparison.Findings: Of the participants, 256 (34,7%) dropped out until the end of the 2021 season. Dropouts experienced lower intrinsic motivation (U=55263, N1=479, N2=253, p=.006, d=0,15), more amotivation (U=66358, N1=482, N2=256, p=.042, d=0,13) and less coach autonomy support (U=49566, N1=479, N2=253, p=<.001, d=0,30). Regarding identified motivation (U=57329, N1=482, N2=255, p=.13, d=0,11) and introjected motivation (U=64628, N1=482, N2=256, p=.25, d=0,08) no statistically significant differences were found.Conclusion: To facilitate motivation and continued soccer participation we propose theoretically informed education programs to help coaches adopt autonomy-supportive coaching strategies.
|
|
| 10. |
- Bencker, Andreas, 1971-, et al.
(författare)
-
High-level military and sport leaders' everyday challenges and psychological skills : A cross-contextual repeated measures study
- 2024
-
Ingår i: Military Psychology. - Washington, DC : Routledge. - 0899-5605 .- 1532-7876.
-
Tidskriftsartikel (refereegranskat)abstract
- Research shows that high-level military and sport leaders share a high-stress and high-stakes leader role due to similar experiences of demanding conditions mainly manifested in psychological burden. This raises research questions about leaders' psychological strategies to maintain their mental health and performance under demanding conditions. Thus, the current study investigated how experienced demanding conditions were related to self-rated leader performance level and mental health indicators among high-level military and sport leaders and whether the application of psychological skills by these leaders moderated these relationships. A composite questionnaire was used to collect data longitudinally, once a week for four consecutive weeks. Fifty-two Swedish high-ranking military officers and executives in elite team sport organizations completed the questionnaire. Multilevel analysis revealed no effect of demanding conditions on leader performance, but they harmed leader vitality and were associated with higher stress symptoms. Moreover, psychological skills did not moderate the relationship between demanding conditions and leader performance. However, motivational and instructional self-talk negatively moderated the relationship between demanding conditions and vitality. In contrast, emotional regulation, comprised of mindfulness and cognitive reappraisal, positively moderated vitality. Emphasizing the nuanced application of psychological skills is crucial while avoiding one-sided beliefs about their positive effects. Interventions are suggested to focus on vitality and related psychological skills to ensure leaders feel good while performing under demanding conditions. More cross-contextual leadership research, suggestively applied research, is needed to better understand the links between high-level military and sport leaders' psychological skills, leader performance, and mental health under demanding conditions. © 2024 The Author(s). Published with license by Taylor & Francis Group, LLC.
|
|
