| Abstract: | Potential uses of time-series designs for formative program evaluation are illustrated, and the relationship between single-case experiments and quasi-experimental time-series designs is discussed. Four variations of time-series design are presented: interrupted time-series with follow-up, replicated time-series, step-wise time-series, and time-series with reversal patterns. Advantages and limitations of each design are considered in relation to program evaluation, and attention is given to special problems in using time-series data in organizational research. |
