Survey on Caffeine Consumption and Concentration Among College Students

Dear Student,Hello! We are conducting a study on college students' caffeine consumption habits and their impact on learning concentration. This questionnaire aims to understand how you use stimulants such as coffee, tea, and energy drinks to stay alert during your studies. Your responses will be completely anonymous and used solely for academic research. We greatly appreciate your time and participation!

1. Your gender:

MaleFemale

2. Your academic year:

FreshmanSophomoreJuniorSeniorGraduate or above

3. Your major category:

MEDSSESMESDSMUSHSS

4. Your average daily sleep duration is approximately:

Less than 5 hours5–6 hours6–7 hours7–8 hoursMore than 8 hours

5. Do you consume caffeinated beverages? (Select all that apply)

Coffee (e.g., Americano, Latte) Tea (e.g., Green, Black, Oolong) Energy drinks (e.g., Red Bull, Monster) Instant coffee or ready-to-drink coffee Chocolate or caffeinated snacks I do not consume any caffeinated beverages

6. In which situations do you typically consume caffeine? (Select all that apply)

Before/during classBefore examsDuring all-nightersSocial occasionsOther:

7. On average, how many times per day do you consume caffeinated beverages?

NeverOnceTwice3 times4 or more times

8. Which beverage do you believe has the most noticeable alertness effect?

CoffeeTeaEnergy drinkOther

9. Have you ever experienced the following side effects from caffeine consumption? (Select all that apply)

Increased heart rateAnxiety or nervousnessInsomniaStomach discomfortHand tremorsNo noticeable side effects

10. After consuming caffeine, your lecture concentration level:

Significantly improvedSomewhat improvedNo noticeable changeActually decreased

11. After consuming caffeine, how long can you typically maintain focus?

Less than 30 minutes30–60 minutes1–2 hoursMore than 2 hours

12. Have you ever tried using only the smell of coffee (without drinking) to stay alert?

YesNo

13. If you have smelled coffee, please describe your experience: (Select all that apply)

Felt more awakeFelt more motivated to studyImproved moodNo noticeable effectOther

14. Do you believe that "smelling coffee" alone can enhance concentration?

Strongly agreeAgreeNeutralDisagreeStrongly disagree

15. What do you believe is the most important factor affecting your concentration?

Caffeine intakeSleep qualityStudy environmentMental stateInterest in course contentOther

16. Do you have other ways to stay alert (e.g., listening to music, walking, drinking water)? Please briefly describe:

17. Do you have any suggestions for campus provisions of stimulant beverages (e.g., coffee, tea) or improvements to the study environment (e.g., coffee-scented zones)?

Thank you for your participation!
Your responses will help us better understand students’ study habits and health needs. Wishing you academic success and sustained energy!

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