Interrupted Series Analysis

The Interrupted Series Analysis command performs analysis for longitudinal experiments involving a sequence of observations on a single dependent variable before and after an intervention.

How To

Run: Statistics→Time Series → Interrupted Series Analysis...

Select variables with pre-treatment and post-treatment observations. Data is supposed to be unstacked.


The report includes correlograms of pre-treatment and post-treatment observations, their corresponding differences. The summary table for changes in level and slope is produced.

The command is obsolete and will be replaced with the updated version.


Bakeman, R., & Gottman, J. M. (1997). Observing interaction: An introduction to sequential analysis. New York: Cambridge University Press.