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related 4.00 — strongly supporting 15 facts
The Pittsburgh Sleep Quality Index (PSQI) is a standardized instrument used to measure and quantify sleep quality, where higher scores directly indicate poorer sleep quality as evidenced by [1], [2], and [3]. Researchers utilize this index to assess sleep quality in relation to various cognitive performance metrics [4], [5].
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Investigating the impact of sleep quality on cognitive functions ... frontiersin.org 14 facts
measurementUniversity students in Tokyo reported significantly poorer sleep quality (Mean PSQI = 9.2, SD = 3.0) compared to university students in London (Mean PSQI = 7.8, SD = 3.3) with a p-value < 0.001 and Cohen's d = 0.44.
measurementThe correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance is -0.28 (p < 0.001), indicating a weak to moderate negative relationship between sleep quality and attention and executive function.
measurementHigher Pittsburgh Sleep Quality Index (PSQI) scores, which indicate poorer sleep quality, are associated with lower performance on the Rey Auditory Verbal Learning Test (RAVLT), Stroop Test, Raven's Progressive Matrices (RPM), and Wisconsin Card Sorting Test (WCST) (p < 0.001).
measurementStudents in Tokyo exhibited lower sleep quality than students in London, as evidenced by average Pittsburgh Sleep Quality Index (PSQI) scores reflecting a more significant occurrence of sleep disturbances.
measurementThe interaction term (PSQI x City) for the impact of sleep quality on Wisconsin Card Sorting Test (WCST) performance was measured at β = −0.12 with a p-value of 0.09, indicating the result is not statistically significant at the conventional p < 0.05 level.
measurementThe correlation between Pittsburgh Sleep Quality Index (PSQI) scores and Rey Auditory Verbal Learning Test (RAVLT) performance is -0.32 (p < 0.001), indicating a moderate negative relationship between sleep quality and verbal learning and memory.
claimHigher Pittsburgh Sleep Quality Index (PSQI) scores are associated with lower Raven's Progressive Matrices (RPM) scores, indicating that poorer sleep quality is linked to poorer non-verbal reasoning.
claimHigher Pittsburgh Sleep Quality Index (PSQI) scores are associated with lower Wisconsin Card Sorting Test (WCST) scores, indicating that poorer sleep quality is linked to poorer cognitive flexibility and more perseverative errors.
claimIn the Pittsburgh Sleep Quality Index, higher global scores indicate diminished sleep quality.
formulaIn the Pittsburgh Sleep Quality Index (PSQI), scores range from 0 to 21, with higher scores indicating poorer sleep quality.
measurementThe relationship between Pittsburgh Sleep Quality Index (PSQI) scores and Stroop Test performance does not differ significantly between Tokyo and London (β = −0.10, p = 0.21), suggesting the magnitude of the effect of sleep quality on attention and executive function is consistent across both cultural contexts.
procedureResearchers utilized multivariate regression analyses, such as SPSS or R, to investigate the connection between sleep quality, assessed through Pittsburgh Sleep Quality Index (PSQI) scores, and cognitive performance while controlling for variables including age, gender, academic discipline, stress levels, and physical activity.
claimThe impact of sleep quality on cognitive functions, as measured by correlations between Pittsburgh Sleep Quality Index (PSQI) scores and cognitive assessments, is more pronounced among students in Tokyo compared to students in London.
claimResearchers used the Pittsburgh Sleep Quality Index (PSQI) to assess sleep quality in relation to cognitive performance.
The Profound Interplay Between Sleep and Cognitive Function creyos.com 1 fact
claimCreyos Health offers standardized sleep questionnaires, such as the Pittsburgh Sleep Quality Index (PSQI), to assess patients' sleep quality, patterns, and disturbances over time to inform treatment interventions for sleep disorders.