Improving the implementation of patient safety by nursing students using nursing instructors trained in the use of quality circles

Table 4 The mean difference of patient safety implementation between intervention and control groups based on the results of the pre-test and post-test

Variables	n	Mean of differences	SD	t	p
Knowledge
Intervention group	34	6.24	11.01	−0.50	0.616
Control group	34	7.53	10.12	−0.50	0.616
Attitude
Intervention group	34	0.82	18.06	0.35	0.724
Control group	34	−0.41	9.25	0.35	0.724
Skill
Intervention group	34	9.91	15.26	5.65	< 0.001^a
Control group	34	−12.94	17.96	5.65	< 0.001^a

ISSN: 1472-6955