Methodology of Loftus and Plamer (1974)

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In terms of reliability, L+P's sudy was...
STRONG- can be repeated/retested-lab experiment. Standardised procedure- same clips/verbs used. Two studies to check reliability
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In terms of external validity, L+P's study was...
PROBLEMATIC- artificial lab conditions (unrealistic way to witness a crash) Questions are realistic to being a witness (unfamiliar setting)
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In terms of internal validity, L+P's study was...
STRONG- aims were tested and only the verb was changed
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In terms of sampling, L+P's study was...
PROBLEMATIC- large sample size of 45 in exp 1 and 150 exp 2. Age and culture bias- all from same college. Younger peole are inexperienced drivers may be bad a t guessing speed- not representative
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In terms of data, L+P's study was...
PROBLEMATIC- lots of quantitative data to compare. BUT no qualitative- no depth and detail
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In terms of ethics, L+P's study was...
STRONG- no deception, harm was unlikely, everyone gave consent BUT no debriefing.
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In terms of external validity, L+P's study was...

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PROBLEMATIC- artificial lab conditions (unrealistic way to witness a crash) Questions are realistic to being a witness (unfamiliar setting)

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In terms of internal validity, L+P's study was...

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Card 4

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In terms of sampling, L+P's study was...

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In terms of data, L+P's study was...

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