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Caffeine consumption questionnaire revised pdf 2025

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The thesis by Jennifer Ashley Heaton investigates the relationship between caffeine consumption, impulsivity, and caffeine expectancies among college students. It modifies an existing Caffeine Consumption Questionnaire to better reflect current caffeine products and assesses how expectancies and impulsivity predict self-reported caffeine intake. Two studies were conducted: the first piloted the modified questionnaire, while the second analyzed data from participants to explore predictors of caffeine consumption. Results indicated that caffeine expectancies significantly predicted consumption, particularly withdrawal symptoms, while impulsivity dimensions did not show a significant predictive relationship. The study highlights the importance of understanding caffeine consumption patterns in relation to personality traits.

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What is the caffeine consumption questionnaire revised?

Caffeine Consumption Questionnaire-Revised (CCQ-R) The CCQ-R is an instrument that measures self-reported weekly caffeine intake and the amount and type of caffeinated product consumed (i.e., coffee, soft drink, tea, cocoa, chocolate, and over-the-counter drugs) [16].

What is the FDA recommendation for caffeine intake?

Up to 400 milligrams (mg) of caffeine a day appears to be safe for most healthy adults. Thats roughly the amount of caffeine in four cups of brewed coffee, 10 cans of cola or two energy shot drinks.

What is the caffeine expectancy questionnaire?

The caffeine expectancy questionnaire was developed to investigate the effects of caffeine expectations and thus contribute to knowledge about its usage and subjective effects (response expectancies).

What is the caffeine withdrawal symptom questionnaire?

Caffeine Withdrawal Symptom Questionnaire The 32-item CWSQ is arranged in nine separate factors: Drowsiness/Fatigue; Decreased Alertness/Difficulty Concentrating; Mood Disturbances; Decreased Sociability/Motivation to Work; Nausea/Upset Stomach; Flu-like Feelings; Headache, Acute Caffeine Effects, and Craving.

Is 200 mg if caffeine is a lot?

Further, the EFSA indicates that, for most people, up to 200 mg of caffeine at once doesnt raise health concerns, even when consumed less than two hours prior to intense physical exercise. However, they caution that 100 mg of caffeine taken close to bedtime may affect sleep quality.

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