The P and N scores of EPQ in experimental group were lower than those in control group ( t = 2.28 , t = 2.60 , P < 0.05 ) , while the E score of EPQ in experimental group was significantly higher than that in control group ( t = 4.50 , P < 0.01 ) , with no significant difference in the L score of EPQ between two groups ( P > 0.05 ) .