An instructional baseball video claims that their techniques will enable young pitchers to throw more strikes. 20 baseball pitchers were recruited were evaluated for the number of snakes thrown per 50 pitches before and after a 3 week training program that used the video instruction. Is there evidence that the training was effective for the pitchers? Pitcher Pra-tr ' ' Post-tr ' ' 1 28 35 2 29 36 3 3D 32 4 32 2B 5 32 3G 6 32 31 T 32 32 8 32 34 9 32 35 1G 33 36 11 33 33 12 33 35 13 34 32 14 34 3G 15 34 33 16 35 34 17 36 37 18 3:5 33 19 3? 35 20 3? 32