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Inhalt Availability versus accessibility

How forgetting works

Availability versus accessibility

Not recalling something under one prompt does not establish that it is absent from memory. The useful distinction is between availability and accessibility. Availability corresponds to storage. Accessibility corresponds to whether stored information can be reached under the present retrieval conditions.1

With more than nine hundred high-school students, Tulving and Pearlstone demonstrated cue-dependent changes in recall and interpreted them using the availability-versus-accessibility distinction. Participants studied categorized word lists once. They then received either an immediate unaided recall test or a test supplied with the category names. Category-cued recall exceeded unaided recall even though the study conditions before the tests were the same.2 The cue changed observed memory without adding another study period.

The diagram shows why failed unaided recall does not establish unavailability: a category cue can change retrieval conditions and make additional studied words accessible.

flowchart TD
    A["Categorized words studied once"] --> B["Immediate unaided recall"]
    B --> C["Some studied words are not reached"]
    C --> D["Interpretation: words may remain available in storage"]
    D -->|"Category name supplied"| E["Retrieval conditions change"]
    E --> F["Additional studied words become accessible"]

Figure: A suitable retrieval cue can make stored information accessible after unaided recall fails to reach it. The benefit of category cues varied with list length and the number of studied words per category. In the experiment, the category advantage grew as the total list became longer, but it shrank as more studied words competed within each category.2 Retrieval can involve reaching the broad category and then finding the particular word within it.

With a deck and twenty minutes, pause after a miss before exposing the answer. Try a broader category cue. If the answer then appears, the original failure was specific to the first retrieval condition. That observation can distinguish an access problem in that moment from complete failure under every available cue.

Boundary. Cued recovery does not prove that every unrecalled item remains stored. The experiment observed recall behavior, not memory traces directly. Availability was the interpretation applied to words recovered after the retrieval cue changed. Recall always reflected both the earlier storage conditions and the conditions present at the test.12

Quellen

  1. [1]Tulving’s retrospective account of availability and accessibility
  2. [2]Tulving and Pearlstone on availability versus accessibility
Quizze

  1. Supplying a category name after unaided recall changes the _____ rather than adding another study period.

    • retrieval conditions
    • original word list
    • initial learning time

    The participants studied under the same conditions, but category names provided a new route for reaching additional words.

  2. A learner cannot recall a studied term unaided but relearns it faster than a new term. Which interpretation best fits the distinction?

    • Some memory remained available but was inaccessible under the unaided prompt
    • The failed recall showed the earlier learning had left no memory
    • The faster relearning showed the item had been accessible all along

    Faster relearning suggests residual retention, while the unaided failure shows that the original prompt did not provide access at that moment.

  3. The same prior study conditions can produce different recall when the cues available at the test differ.

    • True
    • False

    Category-cued recall exceeded unaided recall even though participants had experienced the same study phase beforehand.

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