Recall bias is most commonly associated with which study design-

.<p>1`when cases and controls are asked questions about their past history,it may be more likely for the cases to recall the existence of ceain events or factors,than the controls who are healthy individuals.cases may have a different recall of past events than controls.</p><p>ref;park&;s textbook of preventive and social medicine,22 nd edition,pg no 71</p>