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An inventory of human light exposure behaviour
Mushfiqul Anwar Siraji1,2, Rafael Robert Lazar3,4, Juliëtte van Duijnhoven5
1Department of Psychology, Jeffrey Cheah School of Medicine and Health Sciences, Monash University Malaysia, Selangor, Malaysia.
Scientific Reports
|December 13, 2023
Summary
Researchers developed the Light Exposure Behaviour Assessment (LEBA), a validated tool to measure how daily behaviors influence light exposure. This tool helps understand individual contributions to light
Area of Science:
- Chronobiology and Sleep Science
- Behavioral Science
- Public Health
Background:
- Light exposure significantly impacts health and well-being.
- Individual behaviors modulate physiological responses to light.
- Understanding these behaviors is crucial for targeted interventions.
Purpose of the Study:
- To develop and psychometrically validate a novel inventory, the Light Exposure Behaviour Assessment (LEBA).
- To capture self-reported light exposure-related behaviors.
- To provide a scalable tool for characterizing behaviors influencing photic exposure patterns.
Main Methods:
- An expert panel developed an initial 48-item pool.
- Responses were collected via an online survey from 690 participants globally.
- Exploratory and confirmatory factor analyses were used to refine the inventory, resulting in a 23-item scale and a short form.
Main Results:
- A five-factor solution with 23 items was identified, demonstrating good fit and reliability (McDonald's Omega = 0.68).
- The instrument showed measurement model invariance between native and non-native English speakers.
- A validated 18-item short form was developed using Item Response Theory.
Conclusions:
- The Light Exposure Behaviour Assessment (LEBA) is a psychometrically sound instrument for measuring light exposure behaviors.
- LEBA offers a scalable solution for characterizing these behaviors in diverse, remote populations.
- The LEBA inventory is available under an open-access license for research use.
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