Interrupted time series

Interrupted time series analysis sometimes known as quasi-experimental time series analysis is an approach for the analysis of a single time series of data known to be affected by interventions (interrupted time series, ITS). The interrupted time series design is the design of experiments based on the interrupted time series approach.

Applications include various research in social sciences:

The ITS design is the base of the comparative time series design, whereby there is a control series and an interrupted series, and the effect of an intervention is confirmed by the control series.

Effects of the intervention are evaluated by changes in the level and slope of the time series and statistical significance of the intervention parameters.

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