A Procedure for the Analysis of Time-Series Designs.
A multivariate procedure, based on the procedure outlined by Campbell and Stanely, is developed for inferring a treatment effect in the single-group, quasi-experimental time-series design. This procedure, which takes into account the dependent nature of the observations in the time-series experiment, is particularly suitable when the data exhibit linear trends. It is shown that the test statistic has a F distribution, and the procedure is illustrated with an example.