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…

Instruments, procedures, and criteria for the screening of Mayan students in Yucatan, Mexico are depicted and evaluated by analyzing the results of their use on 242 students in five different regions of Yucatan. These 242, 8th grade students were selected from a pool of 1,530 potentially gifted students. Participants responded to a variety of…

This evaluation examined the implementation and effectiveness of the AVID program in middle schools throughout the Wake County Public School System (WCPSS). Survey results and school visits revealed considerable inconsistencies in implementation across schools. Specifically, selection criteria were not consistently understood and applied, all…