Establishment Of Norms For Gross Motor Development Test In 7-9 Year Old Children In Nanning

Children’s big muscle action development closely associated with motor skill learning,and promote the foundation of physical quality and health of body and mind Large muscle action development test and evaluation is a mirror of the children’s basic motor skills,the establishment of the norm can use reference standards to judge the level of development,to provide accurate reasonable Suggestions for intervention.Objective:To investigate the reliability and validity of Gross Motor Development Test(TGMD-3)in children aged 7-9 in Nanning,and to establish the gross motor development test norm according to the distribution of test values,so as to provide a reference standard and evaluation basis for children’s gross motor development for physical education workers in Nanning.Methods:The researcher random cluster sampling method and 1040 children(475 males and 565 females)aged 7-9 years old from 8 primary schools in Nanning were randomly selected to take gross motor development test,120 children(60 boys,60 girls)were randomly selected to take reliability and retest reliability test raters,and 96 children(48 boys,48 girls)were randomly selected as the criterion tool to test the criterion correlation degree with The National Student Physical Fitness and Health Standard(primary school).The person correlation coefficient,Cronbachαcoefficient(Cronbach’s Alpha)and confirmatory factor analysis were used to test the TGMD-3 reliability and validity,and the two-factor ANOVA was used to analyze the age and gender The age difference test was carried out,the original data were tested for normal distribution,and the percentile standard score and five-grade norm were established.Results:(1)TGMD-3 had good difficulty(P=0.39～0.85)and differentiation(D=0.21～0.67).(2)Reliability:the raters had good reliability(R>0.87,P<0.01);The reliability of homogeneity was good(a=0.813～0.866);The retest reliability was good(r=0.820-0.947,P<0.01).(3)Validity:Good internal structure consistency validity(r=0.692～0.941P<0.01);KMO=0.897(KMO>0.8),Bartlett spherical test P<0.01,the tested sample data is suitable for factor analysis;X~2/df=2.482<3,CFI、IFI、TLI value is greater than 0.8,GFI、AGFI value is greater than 0.9,RMSE=0.05(RMSE<0.08),the factor load value after standardization is between 0.49 and 0.80;Gross motor development of mobile skills and object control skills and physical health passed the criterion correlation degree test(R=0.713,0.728,0.846).(4)There was a significant difference in age between the development of gross motor movement skills and object control skills and physical health(P<0.01);There were significant gender differences in gross motor development of object manipulation skills(P<0.01),there was no gender difference in mobile skills(P>0.05);There was no significant difference between age(7,8 and 9 years old)and gender(boys and girls)in gross motor development motor skills and object manipulation skills interaction(P>0.05).(5)The kurtosis and skewness of gross motor development and object manipulation skills of children of different ages and genders are between-2 and2 in normal distribution test;The norms of locomotor skills of different ages,gross motor development of different genders,object control skills of percentile grade,standard score and grade five were established respectively.(6)Shanghai 7-9 years old children’s movement skill,the first three grades of raw score object manipulation skills to reach taiyuan same age children to the third to fifth grade raw score range,in addition to the eight group of boys in Shanghai object manipulation skills first grade raw score of nanning,8 group of boys in the third grade raw score range,The others reached the original score range of the second to fourth grades of the children of this age group in Nanning;The higher the number of grades corresponding to the movement skills and object control skills of 7-9 years old children in the three cities,the higher the original score,the original score of the first to fifth grades of 7-year old children is lower than that of 8-year old children,and that of 8-year old children is lower than that of 9-year old children.Conclusion:(1)TGMD-3 has good reliability and validity of difficulty discrimination.(2)There are differences in gross motor development,movement skills and object manipulation skills among children aged 7-9 in Nanning.There were gender differences in gross motor development of object control skills,but no gender differences in mobile skills.(3)The original scores of gross motor development,movement skills and object control skills of children of different age groups and genders followed normal distribution.The norms of percentile,standard score and grade 5 were established according to age group,and the norms of percentile,standard score and grade 5of gross motor development and object control skill were established according to gender group.A total of 9 norm scales.(4)In Shanghai,Taiyuan and Nanning,the scores of mobile skills and object control skills of boys and girls aged 7-9 increased with age.The gross motor development level of children in Shanghai is better than that of children in Taiyuan and Nanning,and children in Nanning are better than children in Taiyuan.