- The rate of correct practice in steps 1 (90.3%); step 2 (97.7%); step 3 (93.5%); step 5 (96.3%); step 7 (92.1%); step 9 (95.8%); step 10 (91.7%); step 11 (90.7%); step 13 (98.6%); step 14 (98.6%); step 15 (94%); step 17 (94.4%) and step 18 (90.3%).