Part 2. A drug company is advertising a new drug that helps people recover from

Question

Part 2. A drug company is advertising a new drug that helps people recover from jet lag faster. You are skeptical, so you conduct an experiment to test their claim. In your experiment, 100 people are flown from San Francisco to Tokyo. During the flight, half the participants are randomly given the drug company's new drug. The other half of the participants are given a placebo (i.e., sugar pill) during the flight. Six hours after they land, all participants are asked to rate how sleepy and disoriented they feel on a scale from 1 to 10. Do you think this experiment has more internal validity or external validity? Explain your answer

Explanation / Answer

This test would be more of external validity than internal validity.

External validity is something that is more generalized and directed more so towards overt characteristics of a given study that infer causal relationship, although it might not be the case.

Whereas, internal validity is more controlled and something that is more sought after in research study and design. Internal validity shows true causation without the affects of confounding variables that do seem to step into many studies and can be attributed for a certain phenomenon  

This study would be more external for there cannot be a nuanced anysis of the sundry other things, other than the pill, that could have helped the passengers feel better with respect to their apparent jet lag.

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