Dr Anderson Conducted a Study Investigating Whether Exercising Immediately Before

question 20

Multiple Choice

Dr. Anderson conducted a study investigating whether exercising immediately before an exam boosted cognitive abilities. She randomly assigned participants to either do jumping jacks or count to 60 before giving them a geometry test. She did not find any differences between groups but believes there may have been a ceiling effect. What might be a clue that this was the case?

• A)All participants' scores are centered around 100% correct.
• B)Participants in the counting group showed more variability in scores.
• C)Participants in the exercise group took longer to complete the test.
• D)Some participants verbally noted that the test was too easy.

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