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Dr. Aronoff takes extra time when planning his studies to make sure that the results will generalize to other people and other situations than those he is directly examining. Dr. Aronoff is concerned with ________.A) external validity. B) deception. C) internal validity.D) interjudge reliability.

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Answer: A. External Validity

Explanation: External Validity measures how well the result or outcome of a scientific study performs when applied to samples not used in the original study. It is a measure of well a scientific study generalize on similar samples outside the context of the the original experiment. It differs from internal validity which measures the approximate truth or validity of a research on the samples used for the study. External Validity is essential if a particular study would be considered in making global or large scale generalization.

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