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psychology - lab experiment strength/weakness?

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    does anyone know of a strength and a weakness of a laboratory experiment, other than high levels of control, and low ecological validity?
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    Strengths:
    Manipulation of IV indicates cause and effect relationship.
    Increased control and accurate measurement.
    Standardised procedures = replication is possible.

    Weakness:
    Total control over all variables is not possible.
    Artificial conditions may produce unnatural behaivour that lacks ecological validity.
    Results likely to be biased by sampling, demand characteristics, experimenter expectancy.
    May raise ethical problems of deception.

    Are you doing your coursework? lol
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    ^ What Kelly said

    Look a this if it helps too: http://www.holah.karoo.net/glossary.htm#L
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    thanks for the help! and yes, i am doing my coursework, well, just improving some parts.
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    S:Controled vaeriables
    W:low eccological validity
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    crazybeautiful that link is fab! thanks!
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    No problem (love appreciation from a post I made like 2 months ago! :laugh:)

    The holah website is very good all-round if you are doing OCR, by the way
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    (Original post by x Kelly x)
    Strengths:
    Manipulation of IV indicates cause and effect relationship.
    Increased control and accurate measurement.
    Standardised procedures = replication is possible.

    Weakness:
    Total control over all variables is not possible.
    Artificial conditions may produce unnatural behaivour that lacks ecological validity.
    Results likely to be biased by sampling, demand characteristics, experimenter expectancy.
    May raise ethical problems of deception.

    Are you doing your coursework? lol
    Basically this, OP.
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    you do realise the OP posted this like in july
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    Aha, no I didn't notice.

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Updated: September 27, 2008
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