Given that there is no universal way to measure implementation fidelity, instructional designers developing instructional innovations may find themselves faced with the challenge of determining the extent to which teachers' implementation of an instructional model is faithful. This article contends that a faithful implementation is one in…

This article deals with an on-line soils module project. The two goals for this part of the project were to determine if an on-line soils module could be successfully used for asynchronous instruction of two diverse populations and to determine which demographic factors are related to test performance. The module was presented to an eighth-grade…