Shoenfelt, Elizabeth L Comparison of constant and variable practice conditions on free-throw shooting. [electronic resource] - Perceptual and motor skills Jun 2002 - 1113-23 p. digital Publication Type: Clinical Trial; Comparative Study; Journal Article; Randomized Controlled Trial ISSN: 0031-5125 Standard No.: 10.2466/pms.2002.94.3c.1113 doi Subjects--Topical Terms: AdolescentAdultFemaleHumansMaleMotor SkillsPractice, PsychologicalPsychomotor PerformanceRetention, PsychologyTransfer, Psychology