Table 1 Test – retest reliability analysis of the knowledge on sport nutrition (KSN) and knowledge on doping (KD) questionnaires (dependent samples T-test; r - test-retest correlation; %ERQ - percentage of equally responded queries). Data are means (±SD). Test Retest r %ERQ KD 5.01 (1.86) 5.45 (1.69) * .94 * 91% KSN 5.58 (1.88) 6.20 (1.85) * .90 * 89% p <; 0.05