Part-set cueing effect

The charge

The part-set cueing effect is the paradox that giving people some items from a studied list as cues can make them recall the remaining items worse. Partial prompts can block rather than help retrieval.

How it operates

Supplied cues can disrupt a person's natural retrieval strategy and bias search toward the given items. They may also increase competition from the cued items, making uncued items harder to access.

Logged incidents

1. Incident 01

   In a brainstorming recap, listing a few already-mentioned ideas makes the team less able to remember other ideas from the session.

2. Incident 02

   A retro facilitator names some known causes of delay and unintentionally suppresses recall of less obvious causes.

3. Incident 03

   A manager prompts with a few examples of an employee's work and gets a narrower review discussion than if people recalled freely first.

What to watch for

If prompts seem to narrow rather than expand recall, suspect this effect. Ask: "Are these cues helping memory, or are they steering me away from other relevant items?"