Table 1.
Model Variables: Means and Standard Deviations (N = 446)
| Distance: 20 maps 2230a obs. | Cluster Location: 8 maps 892a obs. | |||||
|---|---|---|---|---|---|---|
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| Variables | Description of Measure | RSb | Mean | SD | Mean | SD |
| Hazard level | Low level (all blue), mixed levels (even mix of blue and dark red), high level (all dark red) | 1,2,3 | 2.4 | 0.7 | 2.5 | 0.5 |
| Proximity - Distance | Far (2.5 miles, 3 map cm), medium (1.25 miles, 1.5 map cm), near (0.5 miles, 0.6 map cm) | 1,2,3 | 2.4 | 0.9 | ||
| Prevalence | 1, 2, 8 dots | 1,2,8 | 4.2 | 3.2 | ||
| Proximity - Cluster location | Outside, inside | 1,2 | 0.5 | 0.5 | ||
| Cluster density | Loose, tight | 1,2 | 0.5 | 0.5 | ||
| Subjective Numeracy Scalec | 7 items (arithmetic average), 5 and 6 point scales | 1 – 6 1 – 5 |
4.6 | 0.6 | 4.6 | 0.6 |
| Gender | Male = 0, female = 1 | 0, 1 | 0.7 | 0.5 | 0.7 | 0.4 |
| Water use | Current drinking water use (no treatment, filtered, bottled); coded as untreated; treated | 0,1 | 0.6 | 0.5 | 0.6 | 0.5 |
| Prior residence | Dominant residential experience on ordinal scale (rural, small town, suburban, urban) | 1 – 4 | 2.7 | 0.9 | 2.7 | 0.9 |
| Susceptibility | % chance of rhynium over drinking water standard on11-point scale | 0–100 | 57.1 | 27.3 | 71.1 | 20.7 |
| Severity | Rhynium-related health problems are serious. (SA-SD)d | 1 – 6 | 5.2 | 0.9 | 5.3 | 0.8 |
| Locational social comparison | My risk compared to others in the township (much less – much more) | 1 – 7 | 5.1 | 1.5 | 5.5 | 1.2 |
| Serious problem | Rhynium is a serious problem for my well (SA-SD)d | 1 – 6 | 4.4 | 1.4 | 5.0 | 1.0 |
| Distress | I feel distressed about rhynium risk (SA-SD)d | 1 – 6 | 4.0 | 1.5 | 4.5 | 1.3 |
| Monitor intentions | Intentions to have water tested for rhynium (definitely not test, definitely will test) | 1 – 5 | 4.2 | 1.1 | 4.6 | 0.7 |
| Mitigate intentions | Intentions to drink less untreated water compared to assigned use of all of the time (as usual – stop drinking) | 1 – 5 | 3.2 | 1.4 | 3.8 | 1.2 |
a
446 students × 5 distance maps = 2230 observations; 446 students × 2 cluster maps = 892 observations
b
RS = numeric codes for attribute measures and response scale for survey items (personal characteristics and dependent variables)
c
Revised from 8-item scale (Zikmund-Fisher, Smith, Ubel, & Fagerlin, 2007)
d
SA-SD = Strongly Agree – Strongly Disagree