- 80% of trigrams were recalled at 3 second intervals. This decreased as interval increased as only 10& of pps recalled trigrams at 18 secs.
- Remembering 3 letters, whilst counting backwards from a specified number to prevent rehearsal. PPS then asked to recall trigram
- Lab ex: lack ecological validity.Can't show everyday behavior; can't be generalised
- High reliability as done in controlled settings
- Proactive interference may occur as repition of trials may have caused confusion with recall.
- Lab ex: Low ecological validity.