Jacob is interested in finding out if caffeine affects levels of task performance for introverts and extraverts.Which personality research method should he use?

Question

Quizplus · Accepted Answer

Jacob needs to use an experimental design to test whether caffeine affects task performance for introverts and extraverts. In an experiment, he can manipulate the level of caffeine and randomly assign participants to either a high or low caffeine condition. He can then measure the level of task performance for both introverts and extraverts in each condition. This will allow him to determine whether caffeine has a significant effect on task performance and whether this effect differs based on participants' personality type. A case study would not allow Jacob to draw general conclusions about the relationship between caffeine and task performance for introverts and extraverts. Correlational design and naturalistic observation would not allow him to test the causal relationship between caffeine and task performance.

Jacob Is Interested in Finding Out If Caffeine Affects Levels