The Environmental Issues Test (EIT) is an instrument designed to assess moral and ethical reasoning within a scientific or technological context. It is comprised of five dilemma stories each of which highlights an environmental issue and the moral conflicts inherent in that issue. Following each dilemma story is a series of 12 issues statements, each keyed to a specific moral reasoning stage as defined by Kohlberg. Respondents are asked to assign a priority rating to each statement in terms of its relative degree of importance in making a particular decision. The evaluation of the EIT and the development of a similar test for younger students is described. (BB)