The goal of the project was to validate, refine, and develop plans for implementation of a performance-based challenge test in the cognitive and psychomotor aspects of basic clothing construction skills that could be utilized for grades 7-14. An advisory board and a jury panel representing the three instructional levels provided assistance in developing and validating the instrument. A clothing construction performance instrument was developed for each of two learning levels according to a matrix model. Following testing with 418 students in eight schools, the data obtained was subjected to statistical analysis. It was concluded that the test was feasible. The results are presented in narrative and tabular form. Recommendations are presented for both curriculum changes and test improvement. Appendixes (121 pages) include project correspondence, forms, the matrix model, grading criteria for psychomotor skills, and the 65-page instrument developed. The basic areas covered by the test are fashion and fitting, fiber and fabric, sewing equipment, clothing construction, and clothing care. The format is multiple choice for the written part. Performance tasks are to be completed in the areas of clothing construction and sewing equipment. (Author/RG)