Hosea Is Studying the Relationship Between Caffeine Consumption and Problem-Solving

question 47

Multiple Choice

Hosea is studying the relationship between caffeine consumption and problem-solving ability. Which of the following is a categorical way to operationalize caffeine consumption?

• A)The number of cups of coffee consumed in a day
• B)The number of milligrams of caffeine consumed during the study
• C)The frequency of buying energy drinks
• D)Whether the participant drank a soda in the 24 hours prior to the study

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