Table 1. Baseline variables for self-selected and music groups. Data are means (±SD). Self-set music (n = 29) Audiofuel (n = 36) Music mood expectancy beliefs 5.15 (1.69) 5.32 (1.11) Perceived goal difficulty 5.52 (.83) 5.14 (1.44) Perceived goal importance 5.93 (1.13) 5.58 (1.32) Perceived goal difficulty and importance; 1 = not at all, 7 = very much soMusic mood expectancy beliefs; 1 = strongly disagree, 7 = strongly agree