GENERAL MEASURE OF ECOLOGICAL BEHAVIOR

Measurement of ecological behavior across different domains has been t roublesome. The present paper argues that the lack of agreement in mea suring general ecological behavior may be due to the measurement appro ach that is commonly used. An ecological behavior measure should be gr ounded on a probabilistic measurement approach that takes the importan t features of ecological behavior into consideration. Such a measure w as developed in a survey study of 445 members of 2 Swiss transportatio n associations. Three types of ecological behavior measures were inclu ded: a general measure, 3 multiple-item measures, and 3 single-item me asures. Results are controlled for social desirability effects. Reliab ility, internal consistency, and validity scores indicate that a proba bilistic measurement approach can measure general ecological behavior accurately and unidimensionally.