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Table 1 Categorization of errors

From: High definition video teaching module for learning neck dissection

Pattern of failure Definition
1 Step is not done
2 Step is partially completed
3 Step is repeated
4 Second step is done in addition
5 Second step is done instead of first step
6 Step is done out of sequence
7 Step is done with too much force or speed
8 Step is done with too little force or speed
9 Step is done in wrong orientation or direction
10 Step is done on/with the wrong object