University of Twente Student Theses
How Sleep and Caffeine Consumption Affect Each Other Over Time: an Experience Sampling Study
Bouwer, Iris D. (2024) How Sleep and Caffeine Consumption Affect Each Other Over Time: an Experience Sampling Study.
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| Abstract: | To explore how sleep quality and quantity and caffeine consumption are related to each other over time, an experience sampling method (ESM) study with 21 participants was performed over 14 days with the use of the app SEMA3. One morning survey measuring sleep and three surveys assessing caffeine intake at semi-random time points in the morning, afternoon and evening, were prompted each day. Longitudinal associations were analyzed using repeated measures linear mixed modelling. It was found that hours of sleep were significantly negatively associated over time with total caffeine consumption the day after, but not with total caffeine consumption the day before. For coffee consumption only, sleep quantity was found to be negatively associated both with consumption the day before and consumption the day after. No significant associations over time were found between total caffeine or coffee consumption and sleep quality. Overall, this study suggested a reciprocal negative relationship between higher caffeine consumption and lower sleep quantity over time, particularly for coffee consumption. The lack of association with sleep quality could be due to sleep quality being a more subjective rating of sleep compared to sleep quantity. |
| Item Type: | Essay (Bachelor) |
| Faculty: | BMS: Behavioural, Management and Social Sciences |
| Subject: | 77 psychology |
| Programme: | Psychology BSc (56604) |
| Link to this item: | https://purl.utwente.nl/essays/100469 |
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