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Psychometric properties of the Arabic version of the Nightmares Distress Questionnaire (NDQ-AV) in a community sample of adolescents.

Roni Chaaya, Chen Jiang, Runtang Meng, Yihong Zhu, Sahar Obeid, Dina Dagher, Rabih Hallit, Diana N. Malaeb, Mariam Dabbous, Fouad Sakr, Feten Fekih Romdhane, Souheil Hallit

BMC Psychiatry August 9, 2024 DOI: 10.1186/s12888-024-05989-5 (opens in new tab)

Study at a glance

AI-extracted from the abstract
Characteristics Cross-sectional psychometric validation study Peer reviewed
Sample size 546
Population Lebanese adolescents
Measures Nightmare Distress Questionnaire (NDQ-AV), Insomnia Severity Index (ISI), Depression, Anxiety and Stress Scale (DASS-8)
Topics Anxiety Depression Dreaming
Keywords Humans Factor analysis, statistical Reproducibility of results Stress, psychological Dreams Psychometrics Adolescent Lebanon Female Surveys and questionnaires Psychological distress Psychometric properties Arabic Nightmares distress questionnaire
Key findings The Arabic version of the Nightmare Distress Questionnaire showed excellent reliability (α = 0.930, ω = 0.915), with factor analyses supporting both one-factor and two-factor structures and measurement invariance across gender. The authors conclude the scale has factorial and concurrent validity for assessing nightmare distress in Lebanese adolescents.

Abstract

Background: The Nightmare Distress Questionnaire (NDQ), known and commonly used for its adequate psychometric properties, is the most widely used instrument for the measurement of nightmare distress. This study aimed to assess the psychometric properties of a newly translated Arabic version of the Nightmare Distress Questionnaire (NDQ-AV).

Methods: A total of 546 Lebanese adolescents was recruited for this study and completed the NDQ-AV, the Insomnia Severity Index (ISI), and the eight-item Depression, Anxiety and Stress Scale (DASS-8).

Results: The results of the exploratory factor analysis (EFA) and the confirmatory factor analysis (CFA) supported both a one-factor model and a two-factor model of the NDQ-AV, with the latter consisting of seven items within both factors. The first factor was referred to as the "general nightmare distress and coping" while the second was named "nightmare impact and perception". The reliability of the scale was excellent (α = 0.930 and ω = 0.915). Moreover, measurement invariance was shown across gender, demonstrating that this measure performs consistently for both men and women. Additionally, the NDQ-AV scores exhibited excellent reliability alongside factorial and concurrent validity.

Conclusion: In conclusion, these results support the psychometric validity of the Arabic version of the NDQ. The availability of the NDQ-AV is expected to facilitate the understanding of nightmare distress within the Lebanese context.

Comparable studies

Other cross-sectional and survey studies on dreaming, most cited first.

Study Year Design Participants
Insomnia Symptoms, Nightmares, and Suicidal Ideation in a College Student Sample Undergraduate students at a large, public university in the southeastern United States 2011 Observational cross-sectional survey n = 583
Prevalence and Correlates of Frequent Nightmares: A Community-Based 2-Phase Study Middle-aged Hong Kong Chinese adults from the community, mean age 40.9 years (SD 5.5,... 2010 Cross-sectional survey with subsequent clinical evaluation (two-phase design) n = 8,558
Factors of home dream recall: a structural equation model Adults (general population sample) 2003 Cross-sectional survey with structural equation modeling n = 444
The Phenomenology of Lucid Dreaming: An Online Survey Respondents to an online survey about lucid dreams 2014 Online survey n = 684
Frequency of Lucid Dreaming in a Representative German Sample Representative sample of German adults 2011 Cross-sectional survey n = 919

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