RT Book, Section A1 Portney, Leslie G. SR Print(0) ID 1186214622 T1 Measuring Association for Categorical Variables: Chi-Square T2 Foundations of Clinical Research: Applications to Evidence-Based Practice, 4e YR 2020 FD 2020 PB F. A. Davis Company PP New York, NY SN 9780803661134 LK fadavispt.mhmedical.com/content.aspx?aid=1186214622 RD 2024/10/12 AB The statistical procedures that have been described thus far have focused on comparisons, generally applied to experimental and quasi-experimental designs. We will now begin to examine procedures for exploratory analysis, where the purpose of the research question is to evaluate the relationship between two or more measured variables. Where studies of group differences ask if group A is different from group B, measures of association ask, “What is the relationship between A and B?”