Assessing the temporal stability of the ecotourism evaluation scale: testing the role and value of replication studies as a reliable management tool

Developing scales is a critical step in monitoring and evaluating ecotourism to ensure sustainability. Replicating studies to test if scales are enduring in evaluating visitors’ assessments of ecotourism is also essential to ensure reliability and credibility, and to track changes. This paper reports on a sample of 404 international visitors in Nepal's Annapurna Conservation Area, undertaken in 2012, to test for scale stability and change from a 2006 survey. The original scale was cross-validated by confirmatory factor analysis, and then mean-level change and rank-order stability of scale items were reported. There was strong support for the original factor model in the new sample; all items were loaded on a single construct; their loadings were statistically significant, the root-mean-square error of approximation was .076, the comparative fit index was .993, and the non-normed fit index was .987. Although a statistically significant decrease in the mean of scale items was found, the items’ rank-ordering remained similar. The Spearman's rank-order correlation between factor loadings of 2006 and 2012 was .714 and statistically significant. Cronbach's alpha was .845, comparable to the previous alpha of .910. The ecotourism evaluation scale showed temporal consistency but also detected changes in visitors’ attitudes requiring management attention.