What is the relationship between the dependent and the independent variable(s)?

 

In research and statistics we often hear about one factor being associated or correlated with another factor or health outcome (e.g. overweight and obesity is associated with Type 2 diabetes). We also hear about independent and dependent variables.

a) What is the relationship between the dependent and the independent variable(s)? (2 points)

b) What is (are) the difference(s) between a simple linear regression and a multiple regression? (2 points)