Abstract
The development of a seven item scale to measure commitment to environmental sustainability is described. The items ask about pro-environmental behaviour in general terms, and avoid reference to specific behaviours. Scale scores are derived by summing scores on the seven items. Scores on the derived zero to 26 point scale were examined for a UK nationally representative sample of adults over the age of 16. The scores are shown to be normally distributed and the items are shown to have internal consistency. The inter-correlations between the items are all positive and significant. All items are shown to load substantially and in broadly equal degree onto the primary Principal Component. Predictive validity of the scale is demonstrated by examining the differential scores for groups whose specific behaviours are reported as more or less pro-environmental.