How to Enhance Internal Validity in Cancer Studies?
Several strategies can enhance internal validity:
Randomization: Randomly assigning participants to treatment or control groups helps to distribute confounding variables evenly. Blinding: Single or double-blind studies where participants and/or researchers do not know which group a participant belongs to can reduce bias. Control Groups: Using control groups allows for a comparison that can highlight the effect of the intervention. Standardized Protocols: Consistent procedures for all participants ensure that differences in outcomes are due to the intervention and not variations in how it was administered.
