Dataset Information

Reliability of a new measure to assess modern screen time in adults.

ABSTRACT:

Background

Screen time among adults represents a continuing and growing problem in relation to health behaviors and health outcomes. However, no instrument currently exists in the literature that quantifies the use of modern screen-based devices. The primary purpose of this study was to develop and assess the reliability of a new screen time questionnaire, an instrument designed to quantify use of multiple popular screen-based devices among the US population.

Methods

An 18-item screen-time questionnaire was created to quantify use of commonly used screen devices (e.g. television, smartphone, tablet) across different time points during the week (e.g. weekday, weeknight, weekend). Test-retest reliability was assessed through intra-class correlation coefficients (ICCs) and standard error of measurement (SEM). The questionnaire was delivered online using Qualtrics and administered through Amazon Mechanical Turk (MTurk).

Results

Eighty MTurk workers completed full study participation and were included in the final analyses. All items in the screen time questionnaire showed fair to excellent relative reliability (ICCs?=?0.50-0.90; all ConclusionsResults from this study suggest this self-administered questionnaire may be used to successfully classify individuals into different categories of screen time use (e.g. high vs. low); however, it is likely that objective measures are needed to increase precision of screen time assessment.

SUBMITTER: Vizcaino M

PROVIDER: S-EPMC6816215 | biostudies-literature | 2019 Oct

REPOSITORIES: biostudies-literature

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Publications

Reliability of a new measure to assess modern screen time in adults.

Vizcaino Maricarmen M Buman Matthew M DesRoches C Tyler CT Wharton Christopher C

BMC public health 20191028 1

<h4>Background</h4>Screen time among adults represents a continuing and growing problem in relation to health behaviors and health outcomes. However, no instrument currently exists in the literature that quantifies the use of modern screen-based devices. The primary purpose of this study was to develop and assess the reliability of a new screen time questionnaire, an instrument designed to quantify use of multiple popular screen-based devices among the US population.<h4>Methods</h4>An 18-item sc ...[more]

PMID: 31660931

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Project description:BackgroundSubjective measures of sedentary behaviour (SB) (i.e. questionnaires and diaries/logs) are widely implemented, and can be useful for capturing type and context of SBs. However, little is known about comparative validity and reliability. The aim of this systematic review and meta-analysis was to: 1) identify subjective methods to assess overall, domain- and behaviour-specific SB, and 2) examine the validity and reliability of these methods.MethodsThe databases MEDLINE, EMBASE and SPORTDiscus were searched up to March 2020. Inclusion criteria were: 1) assessment of SB, 2) evaluation of subjective measurement tools, 3) being performed in healthy adults, 4) manuscript written in English, and 5) paper was peer-reviewed. Data of validity and/or reliability measurements was extracted from included studies and a meta-analysis using random effects was performed to assess the pooled correlation coefficients of the validity.ResultsThe systematic search resulted in 2423?hits. After excluding duplicates and screening on title and abstract, 82 studies were included with 75 self-reported measurement tools. There was wide variability in the measurement properties and quality of the studies. The criterion validity varied between poor-to-excellent (correlation coefficient [R] range?-?0.01- 0.90) with logs/diaries (R?=?0.63 [95%CI 0.48-0.78]) showing higher criterion validity compared to questionnaires (R?=?0.35 [95%CI 0.32-0.39]). Furthermore, correlation coefficients of single- and multiple-item questionnaires were comparable (1-item R?=?0.34; 2-to-9-items R?=?0.35; ?10-items R?=?0.37). The reliability of SB measures was moderate-to-good, with the quality of these studies being mostly fair-to-good.ConclusionLogs and diaries are recommended to validly and reliably assess self-reported SB. However, due to time and resources constraints, 1-item questionnaires may be preferred to subjectively assess SB in large-scale observations when showing similar validity and reliability compared to longer questionnaires.Registration numberCRD42018105994.

Project description:BACKGROUND:Nutrition and physical activity interventions have been effective in creating environmental changes in afterschool programs. However, accurate assessment can be time-consuming and expensive as initiatives are scaled up for optimal population impact. This study aims to determine the criterion validity of a simple, low-cost, practitioner-administered observational measure of afterschool physical activity, nutrition, and screen time practices and child behaviors. METHODS:Directors from 35 programs in three cities completed the Out-of-School Nutrition and Physical Activity Observational Practice Assessment Tool (OSNAP-OPAT) on five days. Trained observers recorded snacks served and obtained accelerometer data each day during the same week. Observations of physical activity participation and snack consumption were conducted on two days. Correlations were calculated to validate weekly average estimates from OSNAP-OPAT compared to criterion measures. Weekly criterion averages are based on 175 meals served, snack consumption of 528 children, and physical activity levels of 356 children. RESULTS:OSNAP-OPAT validly assessed serving water (r?=?0.73), fruits and vegetables (r?=?0.84), juice >4oz (r?=?0.56), and grains (r?=?0.60) at snack; sugary drinks (r?=?0.70) and foods (r?=?0.68) from outside the program; and children's water consumption (r?=?0.56) (all p <0.05). Reports of physical activity time offered were correlated with accelerometer estimates (minutes of moderate and vigorous physical activity r?=?0.59, p?=?0.02; vigorous physical activity r?=?0.63, p?=?0.01). The reported proportion of children participating in moderate and vigorous physical activity was correlated with observations (r?=?0.48, p?=?0.03), as were reports of computer (r?=?0.85) and TV/movie (r?=?0.68) time compared to direct observations (both p?<?0.01). CONCLUSIONS:OSNAP-OPAT can assist researchers and practitioners in validly assessing nutrition and physical activity environments and behaviors in afterschool settings. TRIAL REGISTRATION:Phase 1 of this measure validation was conducted during a study registered at clinicaltrials.gov NCT01396473.

Dataset Information

Reliability of a new measure to assess modern screen time in adults.

Background

Methods

Results

Publications

Reliability of a new measure to assess modern screen time in adults.

Similar Datasets

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