repeated measures

Repeated measures refer to a research method where the same individuals are tested multiple times under different conditions or over time. This approach allows researchers to observe changes within the same person, reducing variability caused by differences between individuals. For example, measuring a patient's blood pressure before and after a treatment, using the same person as their own control, helps determine the treatment's effect more accurately. It is commonly used in medical, psychological, and social science studies to track progress, effects, or responses over time or under various conditions.