Abstract
Citation
Blunt GH, Hallam JS. The worksite supportive environments for active living survey: development and psychometric properties. Am J Health Promot 2010 Sep-Oct;25(1):48-57.
Abstract
PURPOSE: The purpose of this study was to develop a self-report instrument to measure perceived physical and social environmental factors in the worksite setting that are shown to influence physical activity. DESIGN: Initial items were generated from a review of the literature and were sent out for peer and expert panel review. A revised questionnaire was sent to 1250 participants to determine and test the emerging factor structure. SETTING: The instrument was tested at two worksites in the mid-South. PARTICIPANTS: Participants consisted of a random sample of regular full-time employees at the two worksites. MEASURES: Principal axis factoring with a varimax rotation was used to explore the data in the first group of participants. Confirmatory factor analysis was used to test the fit of the final model in the second group of participants. Measures used included the comparative fit index, parsimony goodness of fit index, root mean square error of approximation, and the root mean square residual. RESULTS: The final analysis showed an adequate fit of the data to the hypothesized factor structure (n = 683). The instrument showed good internal consistency, temporal stability, construct reliability, and discriminant validity. CONCLUSION: The Worksite Supportive Environments for Active Living Survey is a reliable and valid tool for investigating perception of the worksite environment related to physical activity.
Full Text
The full text is available at https://dx.doi.org/10.4278/ajhp.081008-QUAN-240
At A Glance
Physical Activity Environment Variables
| # | Type of Environment/Location |
|---|---|
| 2 | Worksites |
| # | Scale |
|---|---|
| - | Community |
| - | Equipment |
| - | Neighborhood |
| - | Trail/path/corridor |
| Measure | objective | perceived |
|---|---|---|
| Crime/Safety | ✘ | ✔ |
| Pedestrian/Traffic Safety | ✘ | ✔ |
| Cycling Infrastructure | ✘ | ✔ |
| Facility Adequacy/Appeal or Quality | ✘ | ✔ |
| Facility Access/Availablity/Proximity | ✘ | ✔ |
| Aesthetics/Beautification | ✘ | ✔ |
| Pedestrian Infrastructure | ✘ | ✔ |
| Social Environment | ✘ | ✔ |
| Open Space/Greenness | ✘ | ✔ |
Domain(s)
Physical Activity Environment
Measure Type
Questionnaire
Measure Availability
Measure included in article
Number of Items
28 Reported
Study location
Metro/Urban, Small Town/Rural
Mississippi, Tennessee, Mid-South
Two universities
Languages
English
Information about Development of Measure
Initial item development was guided by the environmental domains specific to the work site identified in a review of the literature. Several existing instruments were also reviewed, but only items relevant to physical activity in the work site environment were considered. Initial review of the instrument included a peer and expert panel to determine face and content validity and a field test with employees from two universities to determine question clarity and wording.
Study Design
Study Participants
Age
Adults
Sex
Female
Male
Race/Ethnicity
White
Non-white
Predominantly Low-income/Low-SES
No
Sample Size
683
Study Design
Design Type
Validation/Reliability
Health Outcomes Assessed
None
Obesity Measures
Not applicable
BMI Measured or Self-reported
Not applicable
Covariates
Not reported
Data Reported on Race/Ethnicity
Quantitative data on study sample
Data Reported on SES
Quantitative data on study sample
SES-related Variables
Education
How To Use
Administration
Who Administered
Self-administered
How Administered
Email/postal mail
Time Required
30 minutes
Training Required
Not reported
Instructions on Use
Instructions on instrument use included in article
Data Analysis
Data Collection/Analysis Costs
Not reported
Data Collection/Protocol
Participants were selected from a subset of the higher education worksite population. Participants were randomly selected by proportional allocation based on total employees at each university and the number of employees in each job classification. Participants were sent and returned questionnaires by mail.
Instructions on Data Analysis
Instructions on analysis included in article
Validity (0)
There are no validity tests reported for this measure.
Reliability (2)
| Type of reliability | Construct/subscale assessed | Test/statistic used | Result |
|---|---|---|---|
| Test-retest | Worksite Supportive Environments for Active Living Survey (SEALS) factor subscales | Pearson Correlation (r) | r = 0.731 to 0.958 |
| Internal Consistency | Worksite Supportive Environments for Active Living Survey (SEALS) factor subscales | Cronbach's Alpha | Alpha = 0.787 to 0.881 |