Memory, Bias & Behaviour
The classic findings, stated carefully rather than confidently.
Ivan Pavlov is best known for describing what?
Memory feels like playback. Almost a century of laboratory work says it is closer to reconstruction, and the seams show up in predictable places.
The everyday model of memory is a recording: something happened, it went in, and remembering plays it back with more or less fidelity. Laboratory work has been chipping away at that picture since the 1880s, when Hermann Ebbinghaus measured his own forgetting with lists of nonsense syllables, and it took another blow in the 1930s when Frederic Bartlett found that people retelling an unfamiliar story steadily reshaped it toward their own expectations. What replaced the recording model is messier and more useful. Remembering is treated as a rebuild from fragments, general knowledge and whatever has been encountered since — which explains why confident memories can be wrong in specific, repeatable ways. The questions here cover the best-established of those effects, the ones that show up across many laboratories rather than in a single striking study.
Every question in this quiz is listed below with its correct answer and the reasoning behind it. Play first if you would rather not see the answers — or read through as a study sheet.
Play it insteadAnswer: B. Memory for an event being altered by information encountered afterwards
Why: Elizabeth Loftus demonstrated it by changing a single verb in a question about a filmed collision. The finding has held up across a great many independent replications.
Answer: A. Rapid loss of new material at first, then a much slower decline
Why: He ran the experiments on himself using nonsense syllables so that existing meaning could not help him. The shape he found still turns up in studies of real classroom material.
Answer: D. The beginning and the end
Why: The two halves have different causes: early items get more rehearsal, while late ones are still active when recall starts. A short delay wipes out the end-of-list advantage but leaves the start intact.
Answer: C. Vivid, confidently held memories of learning shocking news
Why: Researchers who collected accounts the day after an event and again years later found the details drifted like ordinary memory. What stayed unusually high was the rememberer's confidence.
Answer: B. Grouping items into larger meaningful units so more can be held at once
Why: George Miller's well-known figure of seven items came out of this work. Later estimates put raw capacity closer to four chunks once rehearsal is prevented.
Answer: A. Holds information while actively manipulating it
Why: Alan Baddeley and Graham Hitch proposed separate subsystems for sound and for visual material. That split is why someone can rehearse a phone number and picture a route at the same time.
Answer: D. Those formed before the injury or illness
Why: Anterograde amnesia is the mirror case, covering everything after the event. The two often appear together because overlapping brain structures serve different stages of memory.
Answer: C. Partial information such as the first letter or the number of syllables
Why: It happens more with proper names than with ordinary nouns. Names carry little meaning of their own, so there are fewer routes into them.
Answer: B. Where a remembered piece of information originally came from
Why: Failures explain how a rumour heard in passing can later feel like something read in a newspaper. The content survives while its origin quietly detaches.
Answer: A. Each recall rebuilds the event from fragments and general knowledge
Why: Frederic Bartlett showed it in the 1930s by having British students retell an unfamiliar folk tale. Each retelling shifted the story further toward their own cultural expectations.
Knowing about a cognitive bias does not switch it off. What the research actually shows about correcting your own thinking.
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The classic findings, stated carefully rather than confidently.
Ivan Pavlov is best known for describing what?
Replication, pre-registration and the famous psychology results that stopped standing up.
In research, replication means what?
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Which planet is closest to the Sun?