Evaluation of Research with Reference to alternative evidence- Gibson and Walk (1960)

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G+W's study is supported by Lashley, what did he find?
The ability of 2 groups of rats being able to jump gaps was the same even one one group had been reared in the dark and the other in the light suggesting innate perceptual skills
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How does Lashley support G+W?
Both studies found that depth and distance perception are both innate, concluding that this ability is adaptive and passed on by evolution
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Which study is stronger, Lashley's or G+W's?
G+W- lashley trained the rats reared in the dark to jump before evaluating them, blurring nature and nurture showing a reduction in validity
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G+W's study is supported by Yerkes, What did he find?
Aquatic turtles have worse depth perception than land turtles as they have evolved in the ocean and have not needed it as they cannot fall in the ocean
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How does Yerkes support G+W?
As G+W found that the aquatic turtles have the worst depth perception of 24% crawling to the deep side
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Which study is stronger, Yerkes or G+W?
G+W- more reliable- as they used a cross species study whereas Yerkes only used turtles.
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G+W's study is challenged by Campos, what did he find?
Used the visual cliff set up-found older infants showed more fear than younger ones suggesting that it is learned rather than innate- found that infants are much more likely to move to the deep side if the mothers expression was welcoming- Learning?
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How does Campos challenge G+W?
as it suggests that depth perception is not innate and instinctive but comes with experience.
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Which study is stronger, Campos or G+W?
G+W- more reliable- included a wider range of pps including newly born animals making it a fairer test.
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How does Lashley support G+W?

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Both studies found that depth and distance perception are both innate, concluding that this ability is adaptive and passed on by evolution

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Which study is stronger, Lashley's or G+W's?

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Card 4

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G+W's study is supported by Yerkes, What did he find?

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How does Yerkes support G+W?

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