capacity

    Cards (3)

    • what is capacity
      the amount of info that can be held in a memory store
    • the research - digit span
      • Jacobs (1887) measured digit span
      • he gave ppts 4 digits, they were asked to recall them aloud. if they were correct, he would add 1 digit each time until they were incorrect, this determines their digit span
      • the mean span for numbers was 9.3 items and for letters it was 7.3
    • evaluation
      1. REAL-LIFE (limit) - Jacobs conducted his study in the 1880s where most research lacked adequate control and there were confounding variable, this makes it lack applicability
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