Recency Bias
- “why does the last candidate always win”
- “recency bias explained”
- “why do I forget the middle of the year”
- “judging by the most recent thing”
:: COMPARE ::
Recency biasvsPrimacy effect
The short answer
The two ends of the same U-shaped curve, differing in mechanism and durability. Primacy is attributed to rehearsal into longer-term memory and survives a delay; recency reflects still-active short-term memory and collapses once you're distracted. What you say first shapes the lasting impression; what you say last shapes the impression in the room.
Side by side
| Aspect | Recency bias | Primacy effect |
|---|---|---|
| Favours | The last items | The first items |
| Mechanism | Short-term memory | Rehearsal |
| Survives delay | No | Yes |
| Best for | Immediate decisions | Later ones |
| Use it for | Immediate decisions | Lasting impressions |
Which one you meant
Readers who land here meaning Recency Bias rather than Primacy effect are usually searching for phrases like “why does the last candidate always win”, “recency bias explained”, “why do I forget the middle of the year”.
Primacy Effect
- “why do first impressions stick”
- “primacy effect explained”
- “does order of information matter”
- “the first thing I heard framed everything”
Which came first
Primacy effect. 1885 — Hermann Ebbinghaus's self-experiments with nonsense syllables establish that recall accuracy depends on an item's position within a learned list — the observation that became the serial position effect.
- 1885Primacy EffectHermann Ebbinghaus's self-experiments with nonsense syllables establish that recall accuracy depends on an item's position within a learned list — the observation that became the serial position effect.
- 1962Recency BiasBennet Murdock maps the serial position curve in detail, finding a recency effect extending across roughly the last eight words of a list.
Read either one in full