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Int J Behav Nutr Phys Act. 2015 Sep 17;12:117. doi: 10.1186/s12966-015-0277-2.

Reliability and validity of three questionnaires measuring context-specific sedentary behaviour and associated correlates in adolescents, adults and older adults.

Author information

1
Department Movement and Sport Sciences, Ghent University, Watersportlaan 2, B-9000, Ghent, Belgium. Cedric.Busschaert@UGent.be.
2
Fund for Scientific Research Flanders (FWO), Egmontstraat 5, 1000, Brussels, Belgium. Cedric.Busschaert@UGent.be.
3
Department Movement and Sport Sciences, Ghent University, Watersportlaan 2, B-9000, Ghent, Belgium. Ilse.Debourdeaudhuij@UGent.be.
4
Department Movement and Sport Sciences, Ghent University, Watersportlaan 2, B-9000, Ghent, Belgium. Veerle.vanholle@ugent.be.
5
Fund for Scientific Research Flanders (FWO), Egmontstraat 5, 1000, Brussels, Belgium. Veerle.vanholle@ugent.be.
6
School of Health and Life Science, Institute of Applied Health Research, Glasgow Caledonian University, Cowcaddens Road, Glasgow, G4 0BA, Scotland, UK. Sebastien.Chastin@gcu.ac.uk.
7
Department Movement and Sport Sciences, Ghent University, Watersportlaan 2, B-9000, Ghent, Belgium. greet.cardon@ugent.be.
8
Department Movement and Sport Sciences, Ghent University, Watersportlaan 2, B-9000, Ghent, Belgium. katrien.decocker@ugent.be.
9
Fund for Scientific Research Flanders (FWO), Egmontstraat 5, 1000, Brussels, Belgium. katrien.decocker@ugent.be.

Abstract

BACKGROUND:

Reliable and valid measures of total sedentary time, context-specific sedentary behaviour (SB) and its potential correlates are useful for the development of future interventions. The purpose was to examine test-retest reliability and criterion validity of three newly developed questionnaires on total sedentary time, context-specific SB and its potential correlates in adolescents, adults and older adults.

METHODS:

Reliability and validity was tested in six different samples of Flemish (Belgium) residents. For the reliability study, 20 adolescents, 22 adults and 20 older adults filled out the age-specific SB questionnaire twice. Test-retest reliability was analysed using Kappa coefficients, Intraclass Correlation Coefficients and/or percentage agreement, separately for the three age groups. For the validity study, data were retrieved from 62 adolescents, 33 adults and 33 older adults, with activPAL™ as criterion measure. Spearman correlations and Bland-Altman plots (or non-parametric approach) were used to analyse criterion validity, separately for the three age groups and for weekday, weekend day and average day.

RESULTS:

The test-retest reliability for self-reported total sedentary time indicated following values: ICC = 0.37-0.67 in adolescents; ICC = 0.73-0.77 in adults; ICC = 0.68-0.80 in older adults. Item-specific reliability results (e.g. context-specific SB and its potential correlates) showed good-to-excellent reliability in 67.94%, 68.90% and 66.38% of the items in adolescents, adults and older adults respectively. All items belonging to sedentary-related equipment and simultaneous SB showed good reliability. The sections of the questionnaire with lowest reliability were: context-specific SB (adolescents), potential correlates of computer use (adults) and potential correlates of motorized transport (older adults). Spearman correlations between self-reported total sedentary time and the activPAL™ were different for each age group: ρ = 0.02-0.42 (adolescents), ρ = 0.06-0.52 (adults), ρ = 0.38-0.50 (older adults). Participants over-reported total sedentary time (except for weekend day in older adults) compared to the activPAL™, for weekday, weekend day and average day respectively by +57.05%, +46.29%, +53.34% in adolescents; +40.40%, +19.15%, +32.89% in adults; +10.10%, -6.24%, +4.11% in older adults.

CONCLUSIONS:

The questionnaires showed acceptable test-retest reliability and criterion validity. However, over-reporting of total SB was noticeable in adolescents and adults. Nevertheless, these questionnaires will be useful in getting context-specific information on SB.

PMID:
26381488
PMCID:
PMC4574538
DOI:
10.1186/s12966-015-0277-2
[Indexed for MEDLINE]
Free PMC Article

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