procedures Gibson and Walk (1960)

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What was G+W's research method?
Lab experiment at Cornell University
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What did G+W's sample consist of?
2 groups
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Who/what was in group 1 of G+W's sample?
36 human infants ages 6-14 months old (all had independent locamation)
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Who/what was in group 2 of G+W's sample?
1 day old chicks, lambs, goats, 4 week old kittens (reared either normally or in the dark for 27 days), 4 week old rats with hood so they had to use there whiskers or reared in the dark, pigs cats and aquatic turtles
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What did the visual cliff consist of?
large glass sheet supported 30cm above floor. On one side a sheet of patterned material was placed directly under the glass (shallow side) and on the other side the same material was placed on the floor- creating the perception of a drop (deep side)
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What did they do with the human infant and the visual cliff?
Placed the infant on the centre board to see if it would crawl to its mother who was calling from the shallow side and then from the deep side.
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What did they do with the animal infant and the visual cliff?
Placed the animal on the centre board to see if the animal would move to the deep or shallow end.
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How did the control some confounding variables?
Controlled reflections by placing a light underneath the glass to remove any reflections?
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How did G+W address some ethical issues?
By using a glass shelf to create a illusion so the infants were never in physical harm.
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What did G+W's sample consist of?

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2 groups

Card 3

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Who/what was in group 1 of G+W's sample?

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Card 4

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Who/what was in group 2 of G+W's sample?

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Card 5

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What did the visual cliff consist of?

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