Bakker, A.B.

work engagement resource engagement study performance model job resources journal psychology employee demand bakker job demands effect relationship research support schaufeli burnout workaholism style result problem business interaction jd-r model level stress leadership hypothesis health distress theory variable behavior salespeople transformational day-level demerouti volunteer customer organization process scale job performance factor sales performance pupil misbehavior teacher pupil table state management group competence misbehavior situation sample day-level work engagement contextual performance people self-efficacy transformational leadership control university knowledge innovativeness solution analyses contextual colleague support well-being survey buffer job demandsresources model self-reported diary objective health psychology cynicism