This type of study identifies an outcome researchers want to know more about (for example alzheimer's) and follows people who have developed this outcome. these people are then compared to controls (those without the outcome of interest) to see if there were differences in exposure. what is it?

Quantitative Type of Research. The researcher collects and converts data into numerical form so that the statistical calculations can be made and conclusions are drawn. Researches will have more than one hypotheses. These are the questions which include predictions about the relationships between the things they study about (variables).