The Earthquake Readiness Scale: The Development of a Valid and Reliable Unifactorial Measure |
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Authors: | Matthew J Spittal Frank H Walkey John McClure Richard J Siegert Kimberley E Ballantyne |
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Institution: | (1) Victoria University of Wellington, New Zealand;(2) Centre for Behavioural Research in Cancer, The Cancer Council of Victoria, 1 Rathdowne Street, Carlton VIC, 3053, Australia |
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Abstract: | Preparedness is a key dependent variable in many studies examining people’s response to disasters such as earthquakes. A feature
of many studies on this issue, however, is the lack of attention given to psychometric issues when constructing measures of
preparedness. With regard to earthquake preparation, for example, many studies could be greatly improved by the use of a valid
and reliable measure of preparedness. This research developed such a measure that assessed both low-level preparedness, such
as having an emergency kit, and high-level preparedness, such as altering home structures to mitigate damage. Studies of Wellington
(New Zealand) residents using two samples totalling n=652 showed that 23 items measuring these different aspects of earthquake preparation could be combined into a reliable, valid,
unifactorial scale. This brief scale should have utility in multivariate studies of earthquake preparation, either as a dependent
variable, where preparation is the outcome variable of primary interest, or as one of several independent variables, where
preparation and other measures predict another outcome variable. |
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Keywords: | earthquake readiness measure mitigation preparedness calibration scale scores |
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