Cross-lagged model analysis of the relationship between physical exercise,academic performance,and aggressive behavior in junior high school students
Objective To investigate the causal relationship between junior high school students aggressive behavior,physical exercise and academic performance,so as to provide a reference basis for the development of scientific exercise programs.Methods A longitudinal follow-up study was conducted on 502 junior high school students over a 12-month period from June 2021 to June 2022 using the Buss-Perry Aggressive Questionnaire(BPAQ),Physical Activity Questionnaire for Adolescents(PAQ-A),and test scores as the measurement tools(T1:June 2021,T2:December 2021,T3:June 2022),and a cross-lagged model was constructed to measure the relationship between aggression,physical activity and academic performance.Results At T1,physical exercise had a positive effect on academic performance at T2(β=0.22)and a negative effect on aggressive behavior at T2(β=-0.13),aggressive behavior negatively affected academic performance at T2(β=-0.23),and academic performance had a negative effect on aggressive behavior at T2(β=-0.09).Physical exercise at T2 had a negative effect on aggressive behavior at T3(β=-0.05)and a positive effect on academic performance at T3(β=0.19).Aggressive behavior at T2 negatively influenced academic performance at T3(β=-0.08).Academic performance at T2 negatively influenced aggressive behavior at T3(β=-0.06)(P<0.05).The results of cross-lagged modeling of junior high school students aggressive behavior,physical exercise and academic performance showed that the model was well fitted(x2/df=8.80,CFI=0.96,NFI=0.95,RFI=0.87,IFI=0.96,TLI=0.88,RMSEA=0.12).The results of multi-group structural equation modeling showed that the differences between the models and the baseline model(CFI=0.95,TU=0.86,RMSEA=0.10,90%CI=0.08-0.11,P<0.01)were not statistically significant in terms of gender(△CFI<0.05,P>0.05).Conclusions Physical exercise negatively predictes aggressive behavior and positively predictes academic performance,and aca-demic performance and aggressive behavior negatively affect each other.A scientific exercise program should be developed to reduce aggression and effectively improve adolescents'academic performance.
AggressionExercise movement techniquesLearningMental healthStudents