The purpose of this study is to measure the costs of
the perceived safety threat from triple trailer operation
in Oregon. This is done using the political referendum
model of a common non-market valuation technique,
contingent valuation. Specifically, the average cost of
allowing triples will be found so that comparison...
The purpose of this study was to: (a) develop a comprehensive plan consisting of a series of logical steps based upon recommendations derived from psychometric, measurement, and research literature and utilize the plan to develop a Likert-type scale to provide valid and reliable measures of the attitude of preservice and...