|Nicholls and Polman ||11||U18 national squad||Stressor checklist, coping responses, perceived coping effectiveness||Most frequently-cited stressors: making a mental or physical error, receiving coach/parental criticism, and injury; coping strategies: blocking, increasing effort, and taking advice: blocking and technical adjustment rated as more effective strategies|
|Madigan et al. ||13||Further education|
|Perfectionism, injury||Perfectionism positively predicted injury; only perfectionistic concerns emerged as a significant positive predictor; likelihood of sustaining injury increased twofold for each 1 SD increase in perfectionistic concerns|
|Hill and Appleton ||202||U19 youth||Athlete burnout, multidimensional perfectionism, perfectionistic cognitions||Frequency of perfectionistic cognitions positively related to all symptoms of athlete burnout; frequency of perfectionistic cognitions explained 3–4% unique variance in symptoms of athlete burnout after controlling for self-oriented and socially prescribed dimensions of perfectionism|
|Hill et al. ||15||Premiership academy directors and head coaches||Interview guide explored psychological aspects that may facilitate or derail talent development processes positive||Positive psychological characteristics: cognitive ability, competitiveness, confidence and self-belief, consistency, courage, cultural identity, developmental awareness, driving group standards, effective communication, emotional intelligence, flexibility and adaptability, game understanding, grit.|
Dual-effect psychological characteristics: aggression, obsessive passion, over-commitment, over-confidence, perfectionism, preestablished frameworks and beliefs, work-life balance.
Negative psychological characteristics: avoidance-based coping strategies, complacency, disorganised, expectation and entitlement, failure to overcome challenge, inappropriate goals, lack of awareness, lack of commitment, loss of focus/easily distracted, mental health, negative attitude, poor communicators, psychological burnout, self-doubt, self-handicapping, shyness.
|McCarthy et al. ||821||U18 academy||Player birth month distribution||Skewed birth date distribution across quartiles between observed and expected values; clear bias with Q1 (n = 336, 41%) and Q2 (n = 175, 22%), different to Q3 (n = 176, 21%) and Q4 (n = 134, 16%)|