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Stop/Yield Sign Stuff

Stop/Yield Sign Stuff. What is on the slides?. Subjects are first shown a sequence of slides depicting some “event.” Let’s suppose this even is a traffic accident where some car runs a yield sign and hits another car.

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Stop/Yield Sign Stuff

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  1. Stop/Yield Sign Stuff

  2. What is on the slides? • Subjects are first shown a sequence of slides depicting some “event.” • Let’s suppose this even is a traffic accident where some car runs a yield sign and hits another car. • Assuming the subjects are paying attention to the sequence of slides, they should remember seeing a car running a yield sign.

  3. What are subjects told? • After seeing the slides, subjects are given additional information about what they saw. • What is this additional information? It depends… • Subjects in the misled condition are given incorrect information about something important they saw in the slides (e.g., calling the yield sign a stop sign). • Subjects in the control condition are given more or less irrelevant (but not contradictory!) information about what they saw (e.g., the driver of the car was wearing a business suit that morning).

  4. How are subjects tested? • After seeing the slides and given additional (possible misleading) information about these slides, subjects are given a test using one of two test procedures, each with two options. • (Original) What type of sign was at the intersection? • Yield Sign • StopSign (misinformation) • (Modified) What type of sign was at the intersection? • Yield Sign • No U-Turn Sign (NOTE: It is assumed here that the subjects were not told anything about a No U-Turn sign when given additional information.)

  5. What’s the logic of the modified test? • Remember that all this is to see if misinformation “erases” memory or simply makes it harder to access. • “If misleading information impairs subjects' ability to remember the original information, then misled subjects should perform more poorly than control subjects. However, if misleading information does not affect memory for the original information, then the control and misled conditions should not differ” (McCloskey & Zaragoza, 1985, p. 4)

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