Dr. smalley's research study showed that girls had less self-confidence at age 13 than at age 17. dr. smalley was not willing to conclude that the finding would be true for boys. dr. smalley thus appeared sensitive to the issue of internal validity. external validity. statistical significance.

The answer to this question is external validity. The medical doctor who carried out the research much more likely regarded to be sensitive to the issue of external validity. External validity is the validity inferences in scientific studies and it is usually primarily based on experiments as experimental validity.

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