Group studies are similar to trend and cohort studies. In addition to longitudinal studies, they are also prospective in nature, and information is always collected from the same respondents.<br>Suppose you want to study the spending patterns of household goods in the community.<br>To do this, you can choose several families to find out how much money they spend on household goods every two weeks.<br>You will continue to collect the same information from the same family for a period of time to determine the spending pattern.<br>Similarly, the group study design can be used in the research community.<br>
正在翻譯中..