			Straight	Not straight	Total	Square Khi
Initial performance (TEST)	F.A (G1)	EP	18 (72%)	7 (28%)	25 (100%)	0.44
Initial performance (TEST)	F.D (G2)	EP	20 (80%)	5 (20%)	25 (100%)
Feedback after execution (F.A.G1)	TEST	EP	18 (72%)	7 (28%)	25 (100%)	3.388
Feedback after execution (F.A.G1)	RETEST	EP	23 (92%)	2 (8%)	25 (100%)	3.388
Feedback during execution (F.D.G2)	TEST	EP	20 (80%)	5 (20%)	25 (100%)	0.596
Feedback during execution (F.D.G2)	RETEST	EP	22 (88%)	3 (12%)	25 (100%)	0.596
Final performance (RETEST)	F.A (G1)	EP	23 (92%)	2 (8%)	25 (100%)	0.2 22
Final performance (RETEST)	F.D (G2)	EP	22 (88%)	3 (12%)	25 (100%)	0.2 22