Simons and Chabris' Study of Inattentional Blindness

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1. Which of these questions wasn't asked after the video in any condition?

  • While you were doing the counting, did you notice anything unusual on the video?
  • Did you see anything other than the [No. of] players?
  • How many chest passes were made?
  • Did you see [unexpected event] walk across the screen?
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2. How valid was the study?

  • It lack internal validity, as inattentional blindness was found to have no effect on the aim.
  • It lacked ecological validity, as the events used are unlike those in real life, and life isn't seen through a TV screen
  • It lacked concurrent validity, as it opposed previously established research
  • It lacks ecological as usually you don't need attend a specific event in everyday life

3. Which of these was the combination of unexpected event conditions?

  • Gorilla, Woman pushing a pushchair
  • Man in a white suit, Woman pushing a pushchair
  • Umbrella Lady, Gorilla
  • Umbrella Lady, Man in a white suit

4. How many observers? were recruited and used?

  • 256, 256
  • 239, 210
  • 228, 192
  • 274, 150

5. Which of these wasn't a conclusion of Simons and Chabris?

  • Objects can pass through the visual field, and still not be noticed if not attended to.
  • The difficulty of the task has little effect on inattentional blindness
  • Observers are more likely to notice unexpected events if they are similar to the events that they are paying attention to
  • Inattentional blindness occurs more in the case of superimposition
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