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The command is obsolete and will be replaced with the updated version.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