有英文表述简直不要太赞了。平时我都自己查字典，还是专业的好

！！！！！！！！！！！！1"A Mann-Whitney U test was run to determine if there were differences in engagement score between males and females. Distributions of the engagement scores for males and females were similar, as assessed by visual inspection. Median engagement score for males (5.58) and females (5.38) was not statistically significantly different, U = 145, z = -1.488, p = .142, using an exact sampling distribution for U (Dineen & Blakesley, 1973). "