Comparative Change Design

{
  "id": "MLC-T-ENV-005858",
  "term": "Comparative Change Design",
  "field": "Environment",
  "definition": "The quasi-experimental design known as the comparative change design allows for the measurement of change in relevant outcome factors (using a pre- and post-test) and provides for comparison of this change between a treatment group and a non-random comparison group. Because comparison and treatment groups are not randomly selected, alternate explanations due to prior differences between groups continue to be a threat.",
  "subject": "Policy and guidance",
  "references": [
    "Program Evaluation Glossary"
  ],
  "url": "https://mlchart.com/terminology/environment/comparative-change-design/"
}