Creswell_Research_Design_ Qualitative Quantitative and Mixed Methods Approaches 2018 5th Ed

Control-Group Interrupted Time-Series Design
This design is a modification of the Single-Group Interrupted Time-Series design in which two groups of participants, not randomly
assigned, are observed over time. A treatment is administered to only one of the groups (i.e., Group A).
Group A O—O—O—O—X—O—O—O—O
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Group B O—O—O—O—O—O—O—O—O
Example 8.4 True Experimental Designs
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