Retrieving Memories
Introduced| English | Meaning |
|---|---|
| Retrieval/rɪˈtriːvl/ | A separate process from storage, and it has its own rules. |
| Recall/ˈriːkɔːl/ | Recall |
| Recognition/ˌrekəɡˈnɪʃn/ | Identifying something as having been encountered before when it is presented again. |
| Context-dependent memory/ˈkɒntekst dɪˈpendənt ˈmeməri/ | Improved retrieval when the surrounding context resembles the context in which information was learned. |
| State-dependent memory/steɪt dɪˈpendənt ˈmeməri/ | State-dependent memory |
| Mood-congruent memory/muːd ˈkɒŋɡruːənt ˈmeməri/ | Mood-congruent memory |
| Metacognition/ˌmetəkəɡˈnɪʃn/ | Judging what you actually know — makes study time go where it is needed. |
| retrieval practice/rɪˈtriːvl ˈpræktɪs/ | retrieval practice |
| testing effect/ˈtestɪŋ ɪˈfekt/ | Improved later retention resulting from practising retrieval rather than only restudying material. |
You knew it a moment ago
- A name you cannot produce arrives instantly when someone offers three options.
- The memory was there the whole time; getting it out was the problem.
- Retrieval 提取 is a separate process from storage, and it has its own rules.
Recall and recognition
- Recall 回忆 is remembering without cues — an essay question.
- Recognition 再认 relies on cues — a multiple-choice question.
- Recognition is easier, which is why a test format can change a score without any change in learning.
The serial position effect: the first and last items in a list are recalled best
A multiple-choice question tests mainly...
Difficulty 1/5 · 100 coins + a small bonus on first completion today
The options act as cues, which makes it a recognition task.
Retrieval depends on the situation
- Context-dependent memory 情境依存记忆 improves recall in the same environment as learning.
- State-dependent memory 状态依存记忆 improves it in the same internal state.
- Mood-congruent memory 心境一致性记忆 makes memories matching your current mood easier to reach.
Recall, recognition, or a matching effect?
Sort each situation by the retrieval idea it illustrates.
Context-dependent memory means recall improves when the environment matches the one where learning happened.
Difficulty 1/5 · 100 coins + a small bonus on first completion today
Storage was equal; the retrieval context is what differed.
Select all the matching effects the CED names.
Difficulty 2/5 · 140 coins + a small bonus on first completion today
Serial position is an encoding effect, not a retrieval-matching one.
Feeling that you "know" material after re-reading is a recognition judgement, and the exam will ask for recall. This is a real, measurable trap, not study advice — the CED names metacognition precisely because these two feelings are easy to confuse.
The finding that being tested improves later memory more than re-reading is the ____ effect.
Difficulty 1/5 · 100 coins + a small bonus on first completion today
The testing effect is why retrieval practice beats review.
Retrieval practice
- Successful retrieval is more likely after retrieval practice 提取练习.
- The testing effect 测试效应 shows that being tested improves later memory more than re-reading does.
- Metacognition 元认知 — judging what you actually know — makes study time go where it is needed.
Match each study method to what it actually exercises.
Difficulty 2/5 · 140 coins + a small bonus on first completion today
The comfortable method exercises recognition; the effective one exercises recall.
What this means for studying
- Re-reading feels effective because the material looks familiar — that feeling is recognition, not recall.
- Self-testing feels harder because it demands recall, which is why it works better.
- The comfortable method and the effective method are not the same method.
Students who learned a word list underwater recalled more of it underwater than on land. The words were equally well stored in both groups — the context at retrieval is what differed.
Recall works without cues, recognition with them. Context-, state- and mood-congruent memory all improve retrieval when the situation matches learning. Retrieval practice and the testing effect beat re-reading, and metacognition tells you which you need.
Write from 9 words recalled and 22 recognised
- In a class of 28, free recall averages 9 words and recognition averages 22.
- Explain the gap without claiming one group studied longer.
Among 28 students the same list gives a mean of 9 words on recall and 22 on recognition. Why can recognition be higher?
Recall must produce the word. Recognition only has to identify it.
Why is the recognition mean 22 rather than 9?
Difficulty 1/5 · 100 coins + a small bonus on first completion today
The cue, not a longer study period, separates 22 from 9.