Sezer, Berke ORCID: https://orcid.org/0000-0003-1839-3394, Gucciardi, Daniel F. ORCID: https://orcid.org/0000-0001-5448-3990, Ntoumanis, Nikos ORCID: https://orcid.org/0000-0001-7122-3795 and Riddell, Hugh ORCID: https://orcid.org/0000-0001-8218-7822 (2025) Investigating the role of goal motives in predicting bedtime procrastination using a daily diary study design: a registered report. Psychology & Health. pp. 1-24.

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Abstract

Objectives
Previous operationalisations of bedtime procrastination were incongruent with its definition. We addressed this gap in knowledge by testing a new operationalisation that incorporates the three necessary and sufficient conditions of bedtime procrastination. We investigate the motivational antecedents of bedtime procrastination in daily life with this new operationalisation.

Methods and Measures
Participants (n = 336) self-reported goal motives, chronotype, and typical sleep metrics on a Sunday evening. For the following 7-days, participants self-assessed their 24-h sleep metrics, goal-regulatory variables, and psychological needs.

Results
The bedtime discrepancy scores from the new assessment correlate in expected direction with sleep quantity and chronotype. However, our findings pertaining to motivational correlates of bedtime procrastination showed low compatibility with our expectations.

Discussion
We introduced a new operationalisation of bedtime procrastination that aligns with its definition, and which can complement existing approaches that primarily encompass trait-like elements. Incorporating all three necessary and sufficient conditions of bedtime procrastination at the daily level suggests previous prevalence estimates of this sleep-related behaviour obtained with trait-like operationalisations may be overestimated. The low compatibility between our expectations regarding the motivational antecedents of bedtime procrastination suggest a need for congruence between the levels at which antecedents are captured with this sleep-related behaviour.

Item Type:	Article
Status:	Published
DOI:	10.1080/08870446.2025.2458871
School/Department:	School of Health Sciences
URI:	https://ray.yorksj.ac.uk/id/eprint/15918

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