This paper describes the development of materials to test English language skills and discusses some of the procedures and rationale which were employed in that development. The materials were designed for use in the New Canadian Study (1967-68), which was concerned primarily with the school success of students who learned English as a second language. This document discusses the theory behind the development of these testing instruments and details of the six-part instrument devised to test aspects of auditory perception and vocabulary. Each part is considered and described. A final chapter presents a preliminary evaluation of the materials. Shortcomings mentioned include a lack of coverage of grammatical structure, the language of the directions, and the idea of time limitations. Future use of the materials is also discussed. (Author/VM)