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Eating disorder symptoms among undergraduate varsity athletes, club athletes, independent exercisers, and nonexercisers.
Objective: To examine whether differences in eating disorder symptoms exist between women who are varsity athletes, club athletes, independent exercisers, and nonexercisers and to determine whether sports anxiety moderates any observed between-group effects.
Method: 274 female undergraduates completed the eating disorders inventory and the physical activity and sport anxiety scale and reported their exercise habits.
Results: Women who participated in sports tended to have higher levels of eating disorder symptomatology than those who did not. Higher levels of sports anxiety were predictive of higher levels of bulimic symptoms and drive for thinness. Finally, the interaction of sports anxiety and level of athletic participation significantly predicted body dissatisfaction and bulimic symptoms.
Conclusion: Coaches and clinicians should be aware that athletes experience higher rates of eating disorder symptoms than nonathletes. Moreover, sports anxiety should be considered as a possible target of therapy among athletes.
INDEPENDENT VARIABLES : all those variables which can be changed in the course of a study
different sports played by the girls
different food intake & eating patterns
different excercises performed by them
different bmi of girls
different calorie requirements
DEPENDENT VARIABLE : the variable which is tested & measured in the study or experiment
to known if sports anxiety is aggeevating eating disorder
you have not mentioned table 1 so I m not able to answer your 3rd question
4)--》 this study in my opinion is not completely generalizable as it is limited to only a particular section of female who play any kind of sports or do some exercises
& the sample size is also not very adequate so it cannot even be generalized for women who play any sports
but the result that sport anxiety triggers eating disorder is unique & quite deep ,by using this idea medical professionals can diagnose an eating disorder & help these women to make peace with food