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Cognitive studies

Loftus and Palmer
Aim To investigate the effect of leading questions on the accuracy of eyewitness testimony. Will the
use of more severe sounding verbs to describe an accident lead participants to:
-produce a higher estimate of speed?
-be more likely to incorrectly recall the presence of broken…

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Cognitive studies

2. The bias factors may have also influenced the results; in this case the participants weren't sure
about the exact speed and therefore adjust his or her estimate to fit in with the expectations of the
questioner (demand characteristics).
Part two The second experiment was to provide additional…

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Cognitive studies

1. HFA ­ high functioning autism. 16 participants, of average intelligence. 13 male, three
female. Mean IQ of 105.3
2. AS ­ Asparagus syndrome. 50 participants. 25 male and 25 female. Drawn from general
population of Cambridge. Assumed to have IQs in the normal range.
3. Tourette's syndrome.…

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Cognitive studies

Finally, the two control tasks were:
Gender recognition task ­ this involved looking at the same sets of eyes in the experimental task,
but this time identifying the gender of the person in each photograph. This is a social judgement
without involving mind reading, and allowed the researchers…

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Cognitive studies

2. Sherman and Austin's keyboard was not equipped with a speech synthesiser because tests
revealed that unlike Kanzi and Mulika, they did not understand spoken English words.
3. Sherman and Austin did not use a keyboard outside of the laboratory because their
specificity of symbol use tended to…

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Cognitive studies

3. Pygmy chimpanzees and the common chimpanzees differed in the way they used general
and specific symbols. Common chimpanzees easily generalise symbols but could not easily
learn to specify. For example, they may use juice and coke interchangeably.
4. Sherman and Austin never formed requests in which someone…


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