The three statistical assumptions for a mixed design ANOVA

You have now finalised your research design and you managed to recruit 150 participants for your study with approximately equal numbers in each group. Briefly describe the three statistical assumptions for a mixed design ANOVA and mention which test is used to check if they are violated (where applicable). In your answer, describe whether ​you​ need to be concerned about a violation of each assumption for ​your particular research design ​ and how you ​ would check whether this assumption has been met.