Methodology of Langer and Rodin (1976)

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In terms of reliability, L+R's study was...
PROBLEMATIC- wasn't retested- did have a standardised procedure and results were checked twice with day and night nurse. Double blind- nurses and OAP's did not know the study was happening. BUT field experiment- environment had an effect on results?
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In terms of external validity, L+R's study was...
STRONG- does reflect real life situations- has mundane realism- real nurses real settings
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In terms of internal validity, L+R's study was...
PROBLEMATIC- pps didn't know some of the questions e.g "control"
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In terms of sampling, L+R's study was...
PROBLEMATIC- large sample (91) opportunity bias led to gender bias only 17 men in 91. Culture bias only in Connecticut USA.
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In terms of data, L+R's study was...
STRONG- quantitative- lots of it- comparisons to be made e.g 48% RIG happier vs 25% CG happier
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In terms of ethics, L+R's study was...
PROBLEMATIC- [email protected] didn't know what was going on weren't told after. Mortality rates 25 before 18 months later declined to 20% for the RIG but increased to 30% for the CG
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In terms of external validity, L+R's study was...

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STRONG- does reflect real life situations- has mundane realism- real nurses real settings

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

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

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