Dr. McLean has designed a study to test the cognitive skills of people in their thirties, fifties, and seventies where data are collected over the course of a day through a series of tests. What type of research approach is Dr. McLean using?
Based on the information provided within the question it can be said that the type of research approach being used is called a cross-sectional approach. This type of approach is a type of observational study in which you gather information from a population at a specific set time and date in order to analyze later.
