Psychometric properties of an insomnia-specific measure of worry: The Anxiety and Preoccupation about Sleep Questionnaire
(2011) In Cognitive Behaviour Therapy 40. p.65-76- Abstract
- The aim of this study was to examine the psychometric properties of the Anxiety and Preoccupation about Sleep Questionnaire (APSQ), with a focus on factorial validity and internal consistency as well as discriminative, convergent, and association with sleep parameters and daytime impairment. Among a randomly selected sample from the general population (N = 5,000), 2,333 participants completed a survey on nighttime symptoms, daytime symptoms, health outcomes, and psychological processes. The study sample consisted of 1800 participants who did not fulfill criteria for another sleep disorder than insomnia. A two-factor solution, accounting for 70.7% of the variance, was extracted from the 10 APSQ items. One six-item factor determined worries... (More)
- The aim of this study was to examine the psychometric properties of the Anxiety and Preoccupation about Sleep Questionnaire (APSQ), with a focus on factorial validity and internal consistency as well as discriminative, convergent, and association with sleep parameters and daytime impairment. Among a randomly selected sample from the general population (N = 5,000), 2,333 participants completed a survey on nighttime symptoms, daytime symptoms, health outcomes, and psychological processes. The study sample consisted of 1800 participants who did not fulfill criteria for another sleep disorder than insomnia. A two-factor solution, accounting for 70.7% of the variance, was extracted from the 10 APSQ items. One six-item factor determined worries about the consequences of poor sleep (a = .91); the second factor, with four items, assessed worries about the uncontrollability of sleep (a = .86). The two factors were significantly intercorrelated (r = .65)and significantly associated with the total APSQ (rs = .97 and .76, respectively). The APSQ and the two subscales showed discriminant validity between three sleep status groups (normal sleep, poor sleep, and insomnia disorder; R2 = .33–.41). The APSQ and the subscales demonstrated convergent
validity with measures on cognitive arousal, sleep-related beliefs, anxiety, and depression. They also were significantly correlated with sleep parameters and daytime impairment. The findings suggest that the APSQ is a psychometrically sound instrument for assessing worry in insomnia. (Less)
Please use this url to cite or link to this publication:
https://lup.lub.lu.se/record/2172870
- author
- Jansson-Fröjmark, Marcus ; Harvey, Allison ; Lundh, Lars-Gunnar LU ; Norell-Clarke, Annika and Linton, Steven
- organization
- publishing date
- 2011
- type
- Contribution to journal
- publication status
- published
- subject
- in
- Cognitive Behaviour Therapy
- volume
- 40
- pages
- 65 - 76
- publisher
- Taylor & Francis
- external identifiers
-
- scopus:79951789228
- ISSN
- 1651-2316
- DOI
- 10.1080/16506073.2010.538432
- language
- English
- LU publication?
- yes
- id
- bb022269-a09e-4d63-86b8-b99d679766b8 (old id 2172870)
- date added to LUP
- 2016-04-04 14:40:19
- date last changed
- 2022-04-16 08:14:50
@article{bb022269-a09e-4d63-86b8-b99d679766b8,
abstract = {{The aim of this study was to examine the psychometric properties of the Anxiety and Preoccupation about Sleep Questionnaire (APSQ), with a focus on factorial validity and internal consistency as well as discriminative, convergent, and association with sleep parameters and daytime impairment. Among a randomly selected sample from the general population (N = 5,000), 2,333 participants completed a survey on nighttime symptoms, daytime symptoms, health outcomes, and psychological processes. The study sample consisted of 1800 participants who did not fulfill criteria for another sleep disorder than insomnia. A two-factor solution, accounting for 70.7% of the variance, was extracted from the 10 APSQ items. One six-item factor determined worries about the consequences of poor sleep (a = .91); the second factor, with four items, assessed worries about the uncontrollability of sleep (a = .86). The two factors were significantly intercorrelated (r = .65)and significantly associated with the total APSQ (rs = .97 and .76, respectively). The APSQ and the two subscales showed discriminant validity between three sleep status groups (normal sleep, poor sleep, and insomnia disorder; R2 = .33–.41). The APSQ and the subscales demonstrated convergent<br/><br>
validity with measures on cognitive arousal, sleep-related beliefs, anxiety, and depression. They also were significantly correlated with sleep parameters and daytime impairment. The findings suggest that the APSQ is a psychometrically sound instrument for assessing worry in insomnia.}},
author = {{Jansson-Fröjmark, Marcus and Harvey, Allison and Lundh, Lars-Gunnar and Norell-Clarke, Annika and Linton, Steven}},
issn = {{1651-2316}},
language = {{eng}},
pages = {{65--76}},
publisher = {{Taylor & Francis}},
series = {{Cognitive Behaviour Therapy}},
title = {{Psychometric properties of an insomnia-specific measure of worry: The Anxiety and Preoccupation about Sleep Questionnaire}},
url = {{http://dx.doi.org/10.1080/16506073.2010.538432}},
doi = {{10.1080/16506073.2010.538432}},
volume = {{40}},
year = {{2011}},
}