Evidence map›Paper›PMID 32601644›Full record

ArticleSaudi medical journal2020

Leeds sleep evaluation questionnaire in Jordanian university students. A psychometric investigation using comparative confirmatory factor analysis.

Unaise A Hameed, Muhammed D Al-Jarrah, Md Dilshad Manzar, Chithira Nair, Abdulrhman Albougami, Bader A Alrasheadi, Majumi M Noohu, Mohammed Salahuddin

Abstract read
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Article in Saudi medical journal, 2020. The graph could read no effect estimate from its abstract, so it casts no vote on the map. Cited by 4 papers.

0numbers the graph read from it
0cells of the map it votes in
4citing papers in PubMed
–field-weighted citation impact
1 · What the graph read from it

What it found

Each row is one number read from the abstract, on the scale the paper reported it, with its interval. Left of the dashed line favours the treatment, right favours the comparator. Under each row is the sentence it came from. New to these charts? A ten-minute tutorial.

The abstract states no effect estimate the extractor could read, or names no intervention and outcome on the map, so this paper lights no cell and moves no belief. It is still indexed, cited and linked below.

2 · The registry

The trial behind it

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Neither the registry nor the abstract names a trial number. If this is a trial report, that itself is worth knowing.

3 · Its place in the literature

Who cites it

4 citing papers in PubMed.

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4 · The record

Corrections and comments

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5 · Who and what money

Authors and funding

8 authors.

Unaise A HameedDepartment of Physiotherapy, Fatima College of Health Sciences, Abu-Dhabi, United Arab Emirates. E-mail. unaise.hameed@gmail.com.
Muhammed D Al-Jarrah
Md Dilshad Manzar
Chithira Nair
Abdulrhman Albougami
Bader A Alrasheadi
Majumi M Noohu
Mohammed Salahuddin

Funding

No grant is acknowledged in the PubMed record.

6 · The paper itself

Abstract

objectivesTo analyze the fit of different competing factor models (a one-factor model, 3 2-factor models, and 2 4-factor models) of the Leeds sleep evaluation questionnaire (LSEQ) in the data from a Jordanian student population.

methodsA cross-sectional study was conducted on university students, with 2 sleep-related tools - the LSEQ and the sleep hygiene index (SHI). The students (n=166) at Jordan University of Science and Technology, Irbid, Jordan participated in this study from January-April, 2019. A total of 12 LSEQ models (6 models with all 10-items, and 6 models with one item deleted) were evaluated by using confirmatory factor analysis. The summary statistics of correlation coefficients, descriptive measures of item analysis, the model fit, and Cronbach's alpha were determined.

resultsThe findings show that a 4-factor correlated solution was a plausible model for the LSEQ with 9-items, compared to a one-factor, 2-factor, and other 4-factor variant models. The deletion of one item from the original LSEQ improved the data fit significantly in the studied population. Moreover, correlation analysis between the LSEQ and SHI confirmed the divergent validity of the LSEQ.

conclusionThe results support the validity of a 4-factor structure of the LSEQ with 9-items with adequate internal consistency and divergent validity.

Indexed as

SleepSurveys and QuestionnairesUniversitiesAdolescentCross-Sectional StudiesFactor Analysis, StatisticalFemaleHumansJordanMalePsychometricsReproducibility of ResultsSleep HygieneStudentsYoung Adult

Identifiers

PMID32601644
PMCPMC7502926

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Read under generation 80e0d062 · epoch 390. Bibliography from PubMed, PubMed Central and OpenAlex; grants from NIH RePORTER; trial links from ClinicalTrials.gov; estimates, votes and beliefs from the OpenQuestion graph.