In a classic study on memory, the researcher showed people 2,560 photographs at a rate of one every ten seconds.Each person was then shown 280 pairs of photographs.Each pair included an "old" picture (from the first set of photos) and a similar "new" image.The subjects could tell _____ percent of the time which photgraph they had seen before.
A)only 5
B)15 to 25
C)45 to 55
D)85 to 95

Question

Quizplus · Accepted Answer

This experiment is testing recognition memory, which is typically easier than recall memory. Participants are being shown old and new photographs and simply have to recognize which ones they have seen before. Therefore, we would expect a high percentage of correct answers. The options A and B (only 5% or 15-25%) are too low and indicate poor memory performance, which is not expected given the type of memory being tested. Option C (45-55%) is possible and represents a midpoint, but it still suggests that participants were guessing or not performing much better than chance. The best choice is D (85-95%), which indicates high performance, consistent with recognition memory tasks.

In a Classic Study on Memory, the Researcher Showed People