Group designs can be valuable to social work research, particularly if the goals of the research are to explain, predict, or dai
m causal inferences. Many of these methodologies involve using control or comparison groups. What makes these two groups different? A. Random assignment
B. Validity
C. Reliability
D. Random sampling
During a social work research, a group is created to test the reliability of the results. The people in this group are not given any treatment and if they are, they are given a different treatment. Depending on whether the group was randomly chosen or not, this group is called a comparison group or a control group. While a control group is randomly assigned, a comparison group is not.
