most appropriate statistical test z/t test or Chi square/Fischer exact - Cognition test between genders over period of training?

DocP 01/15/2018. 0 answers, 15 views
chi-squared covariance ancova z-test

My data is from four years of students with an equal number of boys and girls of the same age per year chosen. The purpose of the test is to evaluate the influence of training on a certain cognition skill and to assess differences between the genders. There is a natural increase in cognition as related to the training period.The boys show a marked improvement based on training as compared to the girls / but the girls are always slightly better at the task than the boys irrespective of the training period

1st year (b/g) , 2nd year (b/g), 3rd year (b/g), 4th year (b/g) - cognition 1. Girls > Boys at cognition in years 1 to 3 , but 2. Effect of training Boys>Girls (boys improve markedly with training) - year 4 Boys>Girls

should I go with Chi Square & Ancova ? thanks in advance

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