Cited by 158Sleep and related disordersSleep and Work-Related FatiguePsychometric Methodologies and Testing

How many nights are enough? The short-term stability of sleep parameters in elderly insomniacs and normal sleepers

Wohlgemuth, William K., Edinger, Jack D., Fins, Ana I., Sullivan, Robert J.·1999·Psychophysiology

Abstract

Temporal stability is an important fundamental quality when measuring sleep parameters, yet it has been infrequently assessed. Generalizability theory was used to estimate the short‐term temporal stability of five variables commonly used to characterize insomnia: sleep onset latency, total sleep time, wake after sleep onset, time in bed, and sleep efficiency. Estimates were calculated for 32 elderly primary insomniacs and 32 elderly normal sleepers, both in the lab and at home, using both sleep logs and polysomnography (PSG). A week of recording using either PSG or sleep logs was typically sufficient to achieve adequate stability (defined as G coefficient of at least 0.80) with some notable exceptions: (a) when using log‐derived measures with insomniacs, a 3‐week average was necessary for wake after sleep onset and (b) more than a 2‐week average was necessary for sleep onset latency. Because of the substantial commitment involved in the physiological recording of sleep, alternative forms of aggregation are considered with the intent of improving temporal stability.

Integrity signals

Registry

Crossref · 10.1111/1469-8986.3620233

Cites

Statistics

Recomputing p-values needs the paper’s full text.

Claims the paper makes

This paper’s full text isn’t openly available, so its claims and self-check weren’t run. The registry and citation checks still apply.

Claims other papers make about this one

Each is checked against this paper’s own text: does it say what the citing paper says it does?

Cites

Still being checked.

Cited by

Sorted by citations

Authors
Wohlgemuth, W. K., Edinger, J. D., Fins, A. I., & Sullivan, R. J.
Affiliations
  • Duke University (US)
  • University of Miami (US)
Corresponding author
Wohlgemuth, William K.
Venue
Psychophysiology
Publisher
Wiley
Published
1999-03
Volume
36
Issue
2
Pages
233-244
ISSN
  • 0048-5772 (ISSN-L)
  • 1469-8986
OpenAlex
W1972445138
Cited by
158
References
0
Citations by year
2026: 2 · 2025: 7 · 2024: 7 · 2023: 8 · 2022: 6 · 2021: 18 · 2020: 11 · 2019: 6 · 2018: 4 · 2017: 6 · 2016: 5 · 2015: 4 · 2014: 4 · 2013: 7 · 2012: 7
FWCI
5.71
Type
journal article
Language
en
Open access
closed
Locations
  • Psychophysiology (publishedVersion)
  • PubMed (publishedVersion)
  • NSUWorks (Nova Southeastern University) (submittedVersion)
Funders
National Institute of Mental Health (R01MH48187, R01MH048187)
Topics
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and related disorders
  • Social Sciences › Psychology › Experimental and Cognitive Psychology › Sleep and Work-Related Fatigue
  • Social Sciences › Decision Sciences › Management Science and Operations Research › Psychometric Methodologies and Testing
Keywords
temporal stability, sleep parameters, insomnia, older adults, sleep latency, total sleep time, wake after sleep onset, time in bed, sleep efficiency, sleep diary, polysomnography, generalizability theory, measurement reliability
MeSH terms
Aged, Algorithms, Female, Humans, Sleep Initiation and Maintenance Disorders, Male, Reference Values, Sleep, Polysomnography

About these checks

Registry, retraction, Cites and statistics results are computed, not judged, with one exception: a printed reference that no index lists is read once by a model before it counts as a citation error. Claims are extracted by a model and kept only when their quote appears verbatim in the text; each cited source is then checked, with a model’s help, for whether it says what the claim relies on. Those verdicts can be wrong — read the claim’s quote and the cited source before relying on one.

Statistics and arithmetic are recomputed, not judged.

Confidence bands are shown only for fields calibrated on our annotated test set. None is calibrated yet, so no band is shown.

What counts as a claim ›How we measure confidence ›How we check this ›

Are you an author, or do you see a problem with this page? Request a review