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A clinical director wants to apply an interrupted time-series design to evaluate whether a new scheduling app reduces client missed appointments. Write a brief explanation (1-3 sentences) detailing how the director should schedule their measurements of missed appointments relative to the introduction of the app.
Question: A clinical director wants to apply an interrupted time-series design to evaluate whether a new scheduling app reduces client missed appointments. Write a brief explanation (1-3 sentences) detailing how the director should schedule their measurements of missed appointments relative to the introduction of the app.
Sample answer: The clinical director should collect measurements of missed appointments at regular intervals (such as weekly or monthly) for a period of time before introducing the scheduling app. They must then introduce the app and continue collecting measurements of missed appointments at the same regular intervals for a similar period afterward. This creates a time series interrupted by the treatment to differentiate the app's effect from normal scheduling variations.
Key points:
- Specifies taking multiple measurements of missed appointments at regular intervals before the app is introduced.
- Specifies taking multiple measurements at the same regular intervals after the app is introduced.
- Applies the concept of a treatment 'interrupting' a time series to assess the intervention's impact.
Rubric: The answer should describe taking multiple measurements at regular intervals both before and after the introduction of the scheduling app.
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Research Methods in Psychology - 4th American Edition @ KPU
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A clinical director wants to apply an interrupted time-series design to evaluate whether a new scheduling app reduces client missed appointments. Write a brief explanation (1-3 sentences) detailing how the director should schedule their measurements of missed appointments relative to the introduction of the app.