A study was conducted to examine child support orders before and after the introduction of income-sharing guidelines in Wisconsin. Income-sharing guidelines consider the incomes of both the resident and the nonresident parent and assign the nonresident parent an amount of child support based on his or her relative income. Results reveal that the guidelines have significantly decreased the extent to which higher resident-parent income is related to lower child support orders. It is demonstrated that because of the relationship between resident-parent income and other factors, a multivariate analysis is critical to this assessment. (Author abstract)