Dr. Rajah is studying the effects of a new drug on cognitive performance. After random assignment of groups, one group takes the drug while the other takes a placebo. Afterward, both groups do a series of timed brain teasers and are scored on performance. Dr. Rajah finds a significant difference between the two groups. Does his experiment have external validity?

Question

Social Studies

London Rowe

11 August, 22:00

Dr. Rajah is studying the effects of a new drug on cognitive performance. After random assignment of groups, one group takes the drug while the other takes a placebo. Afterward, both groups do a series of timed brain teasers and are scored on performance. Dr. Rajah finds a significant difference between the two groups. Does his experiment have external validity?

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Answers (1)

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Yusuf Leach · Answer 1

No

Explanation:

External validity refers to being able to apply the results of the research experiment to real life situations. Therefore based on the information provided in the question it can be said that Dr. Rajah's experiment does not have external validity. This is mainly due to the fact that brain teasers are problems that does not reflect on real world problems or events.