Measuring decentering as a unidimensional construct: The development and initial validation of the Decentering Scale for Sport

Decentering, the ability to observe one's thoughts and feelings from a detached view, has gained increased attention in recent years. With this renewed interest comes a need for a reliable and valid tool to measure decentering in sport contexts. Therefore, in this multi-study paper we report the development and initial validation of a sport-specific self-report measure of decentering, the Decentering Scale for Sport (DSS). Based on an initial pool of context-specific items with acceptable content validity, a unidimensional decentering construct was confirmed in four independent athletic samples (n = 1255). Satisfactory internal consistency reliability and partial measurement invariance across gender and sport type was demonstrated. Convergent and concurrent validity of the DSS was established by showing positive and medium to large associations with mindfulness, well-being, flow, vitality, enjoyment and positive affect, and negative and medium to large associations with cognitive fusion, experiential avoidance, anxiety and negative affect. Discriminant validity of decentering with mindfulness and self-compassion was also established. Findings suggest that the DSS is a reliable and valid measure of decentering in sport contexts, and can be applied in future research and applied practice to measure decentering

Mindfulness and Burnout in Elite Junior Athletes: The Mediating Role of Experiential Avoidance

Previous research suggests that mindfulness and experiential avoidance are negatively and positively related to athlete burnout, respectively. It is unknown, however, whether experiential avoidance functions as a mediator between mindfulness and athlete burnout. To address this gap, 387 elite Chinese junior athletes (M = 15.44 years, SD = 1.42) completed self-report measures of mindfulness, experiential avoidance, and athlete burnout. Findings provided cross-sectional evidence that experiential avoidance mediated the inverse association from mindfulness to each of the three burnout dimensions. No gender difference of these indirect effects was revealed. This study is the first to test the theoretical sequence in which mindfulness is associated with athlete burnout via experiential avoidance and provide additional support the adaptive nature of mindfulness

Mental toughness in sport: Motivational antecedents and associations with performance and psychological health

We argue that basic psychological needs theory (BPNT) offers impetus to the value of mental toughness as a mechanism for optimizing human functioning. We hypothesized that psychological needs satisfaction (thwarting) would be associated with higher (lower) levels of mental toughness, positive affect, and performance and lower (higher) levels of negative affect. We also expected that mental toughness would be associated with higher levels of positive affect and performance and lower levels of negative affect. Further, we predicted that coaching environments would be related to mental toughness indirectly through psychological needs and those psychological needs would indirectly relate with performance and affect through mental toughness. Adolescent cross-country runners (136 male and 85 female, Mage = 14.36) completed questionnaires pertaining to BPNT variables, mental toughness, and affect. Race times were also collected. Our findings supported our hypotheses. We concluded that BPNT is generative in understanding some of the antecedents and consequences of mental toughness and is a novel framework useful for understanding mental toughness

"I think they believe in me": The predictive effects of teammate- and classmate-focused relation-inferred self-efficacy in sport and physical activity settings

Despite the prevalence of group-/team-based enactment within sport and physical activity settings, to this point the study of relation-inferred self-efficacy (RISE) has been focused upon estimations regarding a single target individual (e.g., one’s coach). Accordingly, researchers have not yet considered whether individuals may also form RISE estimations regarding the extent to which the others in their group/team as a whole are confident in their ability. We applied structural equation modeling analyses with cross-sectional and prospective data collected from members of interdependent sport teams (Studies 1 and 2) and undergraduate physical activity classes (Studies 3 and 4), with the purpose of exploring these group-focused RISE inferences. Analyses showed that group-focused RISE perceptions (a) predicted individuals’ confidence in their own ability, (b) were empirically distinct from conceptually related constructs, and (c) directly and/or indirectly predicted a range of downstream outcomes over and above the effects of other efficacy perceptions. Taken together, these findingsprovide preliminary evidence that individuals’ group-focused RISE appraisals may be important to consider when investigating the network of efficacy perceptions that develops in group-based physical activity contexts

Cross-Cultural Invariance of the Mental Toughness Inventory Among Australian, Chinese, and Malaysian Athletes: A Bayesian Estimation Approach

The aims of this study were to assess the cross-cultural invariance of athletes' self-reports of mental toughness and to introduce and illustrate the application of approximate measurement invariance using Bayesian estimation for sport and exercise psychology scholars. Athletes from Australia (n = 353, Mage = 19.13, SD = 3.27, men = 161), China (n = 254, Mage = 17.82, SD = 2.28, men = 138), and Malaysia (n = 341, Mage = 19.13, SD = 3.27, men = 200) provided a cross-sectional snapshot of their mental toughness. The cross-cultural invariance of the mental toughness inventory in terms of (a) the factor structure (configural invariance), (b) factor loadings (metric invariance), and (c) item intercepts (scalar invariance) was tested using an approximate measurement framework with Bayesian estimation. Results indicated that approximate metric and scalar invariance was established. From a methodological standpoint, this study demonstrated the usefulness and flexibility of Bayesian estimation for single-sample and multigroup analyses of measurement instruments. Substantively, the current findings suggest that the measurement of mental toughness requires cultural adjustments to better capture the contextually salient (emic) aspects of this concept

The cortisol awakening response and resilience in elite swimmers.

The sports environment is stress-eliciting in that it encapsulates perceived uncontrollability, unpredictability and requires ego-involvement. The HPA axis has been shown (indicated by cortisol release) to respond to anticipated sports competition up to a week prior to the event. Research also alludes to the importance of individual differences, such as optimism and trait perfectionism, in moderating the impact of cortisol upon performance. In total, 41 (male n=27) national (n=38) and international (n=3) swimmers were recruited from northeast England and Australia. Swimmers completed a measure of resilience and also provided buccal saliva swabs, from which total cortisol release prior to and during the event was calculated. Findings revealed that resilience significantly predicted performance and the influence of AUC (cortisol release) upon performance was moderated by resilience. These findings suggest that resilience can influence athletic performance either directly or indirectly, through appraisal (i. e., interpretation of the stressor to be facilitative and non-threatening)

Implementing an Autonomy-Supportive Intervention to Develop Mental Toughness in Adolescent Rowers

It was hypothesized that autonomy-supportive coaching behaviors, psychological needs satisfaction, and mental toughness would increase, and controlling coaching behaviors and psychological needs thwarting would decrease following a coach-directed autonomy-supportive intervention. Data related to these hypotheses were collected with coaches (N = 18) and adolescent rowers (N = 61) prior to and following an 8-week intervention, and 8 weeks following the intervention. Coaches were interviewed following data collection about their involvement in the intervention. Results did not support the hypotheses. Qualitative analyses revealed that autonomy-supportive behaviors might not have been adopted due to contextual pressures on the coaches

The cortisol awakening response and resilience in elite swimmers.

The sports environment is stress-eliciting in that it encapsulates perceived uncontrollability, unpredictability and requires ego-involvement. The HPA axis has been shown (indicated by cortisol release) to respond to anticipated sports competition up to a week prior to the event. Research also alludes to the importance of individual differences, such as optimism and trait perfectionism, in moderating the impact of cortisol upon performance. In total, 41 (male n=27) national (n=38) and international (n=3) swimmers were recruited from northeast England and Australia. Swimmers completed a measure of resilience and also provided buccal saliva swabs, from which total cortisol release prior to and during the event was calculated. Findings revealed that resilience significantly predicted performance and the influence of AUC (cortisol release) upon performance was moderated by resilience. These findings suggest that resilience can influence athletic performance either directly or indirectly, through appraisal (i. e., interpretation of the stressor to be facilitative and non-threatening)

Self-Organized Nanogratings for Large-Area Surface Plasmon Polariton Excitation and Surface-Enhanced Raman Spectroscopy Sensing

Surface plasmon polaritons (SPP) are exploited due to their intriguing properties for the fabrication and miniaturization of photonic circuits, for surface-enhanced spectroscopy and imaging beyond the diffraction limit. However, excitation of these plasmonic modes by direct illumination is forbidden by energy/momentum conservation rules. One strategy to overcome this limitation relies on diffraction gratings to match the wavevector of the incoming photons with that of propagating SPP excitations. The main limit of the approaches so far reported in the literature is that they rely on highly ordered diffraction gratings fabricated by means of demanding nanolithographic processes. In this work, we demonstrate that an innovative, fully self-organized method based on wrinkling-assisted ion-beam sputtering can be exploited to fabricate large-area (cm2 scale) nanorippled soda lime templates, which conformally support ultrathin Au films deposited by physical deposition. The self-organized patterns act as quasi-one-dimensional (1D) gratings characterized by a remarkably high spatial order, which properly matches the transverse photon coherence length. The gratings can thus enable the excitation of hybrid SPP modes confined at the Au/dielectric interfaces, with a resonant wavelength that can be tuned by modifying the grating period, photon incidence angle, or, potentially, the choice of the thin-film conductive material. Surface-enhanced Raman scattering experiments show promising gains in the range of 103, which are competitive, even before a systematic optimization of the sample fabrication parameters, with state-of-the art lithographic systems, demonstrating the potential of such templates for a broad range of optoelectronic applications aiming at plasmon-enhanced photon harvesting for molecular or biosensing