alexa A diurnal type scale. Construction, consistency and validation in shift work.
Psychiatry

Psychiatry

Journal of Addiction Research & Therapy

Author(s): Torsvall L, Akerstedt T

Abstract Share this page

Abstract The purpose of the present study was (i) to construct a short scale with high internal reliability for use as a measure of "diurnal type" (morning or evening disposition), (ii) to validate the constructed index against sleep/wake behavior in connection with different workhours, (iii) to study inter- and intraindividual consistency over a 1-a interval, and (iv) to examine the effects of changed workhours on diurnal type scores. Three hundred shift workers filled out the same questionnaire twice with a 1-a interval. An index of seven items was constructed yielding a Cronbach alpha coefficient of 0.75. The analysis showed that the morning active (MA) individuals rose earlier and went to bed earlier than the evening active (EA) individuals, and the former had a longer sleep length than the latter during days with a morning shift, while the opposite was true for afternoon and night shifts. During days with a morning shift more EA individuals took naps, but during days with a night shift the MA group took naps more often than the EA group. The MA individuals had fewer sleep complaints than the EA individuals during the morning shift. The correlation was high (r - 0.79, p less than 0.001) for the index between the two administrations with a 1-a interval in between. Those who had changed from shift work to day work tended to report a more pronounced morning active disposition. However the interindividual consistency was still pronounced. It was concluded that the analysis resulted in a short diurnal type scale with high internal reliability and high consistency between measurements and that it differentiated between morning and evening types in sleep/wake habits.
This article was published in Scand J Work Environ Health and referenced in Journal of Addiction Research & Therapy

Relevant Expert PPTs

Relevant Speaker PPTs

Recommended Conferences

Relevant Topics

Peer Reviewed Journals
 
Make the best use of Scientific Research and information from our 700 + peer reviewed, Open Access Journals
International Conferences 2017-18
 
Meet Inspiring Speakers and Experts at our 3000+ Global Annual Meetings

Contact Us

Agri, Food, Aqua and Veterinary Science Journals

Dr. Krish

[email protected]

1-702-714-7001 Extn: 9040

Clinical and Biochemistry Journals

Datta A

[email protected]

1-702-714-7001Extn: 9037

Business & Management Journals

Ronald

[email protected]

1-702-714-7001Extn: 9042

Chemical Engineering and Chemistry Journals

Gabriel Shaw

[email protected]

1-702-714-7001 Extn: 9040

Earth & Environmental Sciences

Katie Wilson

[email protected]

1-702-714-7001Extn: 9042

Engineering Journals

James Franklin

[email protected]

1-702-714-7001Extn: 9042

General Science and Health care Journals

Andrea Jason

[email protected]

1-702-714-7001Extn: 9043

Genetics and Molecular Biology Journals

Anna Melissa

[email protected]

1-702-714-7001 Extn: 9006

Immunology & Microbiology Journals

David Gorantl

[email protected]

1-702-714-7001Extn: 9014

Informatics Journals

Stephanie Skinner

[email protected]

1-702-714-7001Extn: 9039

Material Sciences Journals

Rachle Green

[email protected]

1-702-714-7001Extn: 9039

Mathematics and Physics Journals

Jim Willison

[email protected]

1-702-714-7001 Extn: 9042

Medical Journals

Nimmi Anna

[email protected]

1-702-714-7001 Extn: 9038

Neuroscience & Psychology Journals

Nathan T

[email protected]

1-702-714-7001Extn: 9041

Pharmaceutical Sciences Journals

John Behannon

[email protected]

1-702-714-7001Extn: 9007

Social & Political Science Journals

Steve Harry

[email protected]

1-702-714-7001 Extn: 9042

 
© 2008-2017 OMICS International - Open Access Publisher. Best viewed in Mozilla Firefox | Google Chrome | Above IE 7.0 version
adwords