Glossary I
Glossary I
Interquartile range refers to the interval of scores bounded by the 25th and the 75th percentiles.
Interrater reliability (or Interjudge reliability) refers to the level of agreement between two (2) or more raters who have evaluated the same individual independently.
Interrupted time series with switching replications refers to an interrupted time series design that uses non-equivalent groups and introduces the treatment at different points in the series of observations for the two groups
Interrupted time-series design refers to a quasi-experimental research design consisting of a series of observations before and after an event. The event is not a treatment or an experience created or manipulated by the researcher. Interrupted time-series design, moreover is defined as a quasi-experimental design in which a single group is observed multiple times before an experimental manipulation and then multiple times after the manipulation.