probability; measures of central tendency; measures of dispersion; skewed distributions; reliability; validity; sampling Questions 1-3 refer to the following scenario: A nurse published a study of post-op infection rates in children who received three different types of dressings. She thought that children who received Dressing A would have fewer wound infections than children who received either Dressing B or C. Data about any other diseases the children had, their age, place of residence (rural, urban), and medication adherence were also collected. 1. The dependent variable in this study is: 1. Dressing type 2. Infection 3. Disease status 4. Age 2. The independent variable in this study is: 1. Dressing type 2. Infection 3. Disease status 4. Age 3. Identify the confounding variables identified in the scenario