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    The major effect of reduced external validity is ______________

    a) difficulty in generalizing laboratory experimentation to the natural environment
    b) a decrease in external validity as well
    c) a decrease in all types of validity
    d) that it invalidates the study.

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    Solution Preview

    Hi there,

    I assume that you mean "external validity".

    External validity is the extent to which the results of a study can be ...

    Solution Summary

    The solution explains the effects of external validity.