Conducting Interrupted Time-series Analysis for Single- and Multiple-group Comparisons
نویسندگان
چکیده
منابع مشابه
Challenges to validity in single-group interrupted time series analysis.
RATIONALE, AIMS AND OBJECTIVES Single-group interrupted time series analysis (ITSA) is a popular evaluation methodology in which a single unit of observation is studied; the outcome variable is serially ordered as a time series, and the intervention is expected to "interrupt" the level and/or trend of the time series, subsequent to its introduction. The most common threat to validity is history...
متن کاملPersistent threats to validity in single-group interrupted time series analysis with a cross over design.
RATIONALE, AIMS AND OBJECTIVES The basic single-group interrupted time series analysis (ITSA) design has been shown to be susceptible to the most common threat to validity-history-the possibility that some other event caused the observed effect in the time series. A single-group ITSA with a crossover design (in which the intervention is introduced and withdrawn 1 or more times) should be more r...
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Finite Sample Properties of Quantile Interrupted Time Series Analysis: A Simulation Study
Interrupted Time Series (ITS) analysis represents a powerful quasi-experime-ntal design in which a discontinuity is enforced at a specific intervention point in a time series, and separate regression functions are fitted before and after the intervention point. Segmented linear/quantile regression can be used in ITS designs to isolate intervention effects by estimating the sudden/level change (...
متن کاملUsing machine learning to identify structural breaks in single-group interrupted time series designs.
RATIONALE, AIMS AND OBJECTIVES Single-group interrupted time series analysis (ITSA) is a popular evaluation methodology in which a single unit of observation is being studied, the outcome variable is serially ordered as a time series and the intervention is expected to 'interrupt' the level and/or trend of the time series, subsequent to its introduction. Given that the internal validity of the ...
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ژورنال
عنوان ژورنال: The Stata Journal: Promoting communications on statistics and Stata
سال: 2015
ISSN: 1536-867X,1536-8734
DOI: 10.1177/1536867x1501500208