A design, based on student performance, is presented that allows evaluators to judge the suitability of gifted curricula against two criteria: the curriculum should be unique from the regular classroom and it should be beyond the capability of the normal ability learner. To illustrate the design, a study is reported that evaluates two curricula units: higher level thinking (HLT) and independent learning (IL). Gallagher (1979Gallagher ( , 1981 lists curriculum evaluation as one of the major research agendas for gifted education. Further, he states that the appropriateness of gifted curricula must be assessed against the student outcomes the curriculum is presumed to promote. Unfortunately, few investigators have evaluated outcomes derived from the curriculum objectives (Carter and Hamilton, 1985). Instead, most