A researcher wanted to study the effect of organization of material (A) on recall. She expected that retention interval (B) would moderate the effect of organization of material. She varied A at three levels— Low organization. Moderate organization, and High organization. She varied B at two levels— Short retention interval and Long retention interval. The subjects were randomly assigned to the different groups. Each subject received the List of words with specified level of organization. Each of them learnt the list up to one errorless trial and was tested after the specified retention interval. All the subjects had also received the intelligence test .The number of items, recalled by the subject was the dependent variable. The data were analyzed by the appropriate ANOVA,treating intelligence as a covariate. The partial results are given here-(i)
the sum of squares for organization of material (A) was 255.00; (ii) the degrees of freedom for error variance was 115; (iii) the F ratio for interaction (AxB) was 0.95; The obtained results were appropriately interpreted