Cross-sectional research can define as a research that involves using different groups of people who differ in the variables of interest but share other characteristics. Cross-sectional research are studies which based on observations that take place in different groups at one time.
Cross-sectional study can be define as an observational research that analyze data of variables collected at one given point in time across a sample population.
Jacksonville ranked 48 out of the top 100 most populous cities from 2007 to 2016, according to the most recent reports from the National Human Trafficking Center.
