Ecological/External validity in social influence Watch

ammie0206
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I've been set an essay on the methodological issues that might arise when studying social influence, but can someone explain to me
- what the difference between external and ecological validity is (Google is only making things more confusing )
- how these might affect studies into social influence

thanks very much!
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philerus
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Is this a general social influence essay, or do you have to discuss specific factors?
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ammie0206
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(Original post by philerus)
Is this a general social influence essay, or do you have to discuss specific factors?
I only have to talk about external, ecological and internal validity (the methodological issues only make up half of the essay, the rest is on ethical issues)
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philerus
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(Original post by ammie0206)
I only have to talk about external, ecological and internal validity (the methodological issues only make up half of the essay, the rest is on ethical issues)
The easiest way to define adn sperate the two would be to define external validity as the ability of the results of the study to generalise a phenomenon, by infering a conclusion from the samples and applying it to the actual world. Ecological validity is an independent from external validity, and refers to how similar the experimental conditions are to the actual world in terms of perception (think aboutthe importance of procedure in trying to simulate a real jury in a mock trial). In most cases, increased ecological validity can lead to more acccurate external validity, but the that might not always be the case as the two my be seperate.

I hope this helps. If not, try read through this: http://en.wikipedia.org/wiki/Ecological_validity
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ammie0206
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(Original post by philerus)
The easiest way to define adn sperate the two would be to define external validity as the ability of the results of the study to generalise a phenomenon, by infering a conclusion from the samples and applying it to the actual world. Ecological validity is an independent from external validity, and refers to how similar the experimental conditions are to the actual world in terms of perception (think aboutthe importance of procedure in trying to simulate a real jury in a mock trial). In most cases, increased ecological validity can lead to more acccurate external validity, but the that might not always be the case as the two my be seperate.

I hope this helps. If not, try read through this: http://en.wikipedia.org/wiki/Ecological_validity
So external validity is the mundane realism of the results of the study whereas ecological validity refers to the mundane realism of the experimental conditions?
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philerus
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Yes, I love tne way you summarised that.
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ammie0206
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(Original post by philerus)
Yes, I love tne way you summarised that.
Thank you so much!
Now I can actually start this essay...
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