Everyone has a general baseline of intelligence generated by the correlation of performance on different tests
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What is gf and what does it mean?
Fluid intelligence and it is the ability to perform well on non-verbal tasks that do not require prior knowledge
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What is gc and what does it mean?
Crystallised intelligence and it is the ability to perform well on verbal tasks that require previous knowledge and learning
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What did Binet suggest?
That intelligence is not hereditary and is more nurture, test scores should only be used to show a child what they are weak at
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What did Terman suggest?
That intelligence is hereditary
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What did Wechsler do?
Made non-verbal tasks part of IQ tests in order to aid people who had difficulty speaking the language
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What is the Bell curve?
A normally distributed curve graph showing how much of the population achieve what IQ
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What studies can we conduct to investigate whether intelligence is inherited?
Twin and adoption
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What did Plomin and Defries find?
Studied correlation of IQ tests within siblings, found 86% concordance between MZs reared together, 70% between MZ reared apart and 30% in adopted reared together - least was 24%, non-twins reared apart
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What is the confluence theory?
The theory that intelligence is both due to nature and nurture
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What did Nisbett find?
Hereditary of IQ ranged from .4-.8
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What did Haworth find?
Hereditary of IQ rose as children grew older
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What are reaction ranges?
Genetics give people range of possible IQ/intelligence levels, their actual IQ can be anywhere in this range dependent on environmental factors
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What is the limitation of the definitions of intelligence
Vague/ not a clear definition of intelligence/ unknown
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Other cards in this set
Card 2
Front
What is gf and what does it mean?
Back
Fluid intelligence and it is the ability to perform well on non-verbal tasks that do not require prior knowledge
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