Is there the effect of child's age (2-3 vs 6-7 years old) and family type (2 parents vs. mother-only) on amount of feedback provided by mothers (the amount of feedback represents the total number of positive, negative, and directed comments made by mothers; it is given by the variable feed_back_amount)?
Conduct the ANOVA and, if necessary, post-hoc comparisons. Make a graph to represent group differences, and interpret the ANOVA in paragraph written in APA style.