The Arabic Proficiency Test (APT), developed in 1991-92, is described and details of its scoring are outlined. The APT is designed to measure general proficiency in literary Arabic in reading and writing, and in listening and production of standard spoken Arabic. Its proficiency rating scale corresponds to the American Council on the Teaching of Foreign Languages' proficiency guidelines. The test consists of three booklets (listening/reading comprehension, writing, and speaking) and is available in two forms. The listening and reading comprehension test contains multiple choice items on a variety of recorded and printed texts. The writing section consists of tasks ranging from writing out short notes and filling out simple forms to letter-writing and original composition. Spelling, punctuation, length, appropriate vocabulary and grammar usage, clarity, organization, and coherence are measured. The speaking test requires oral responses appropriate to specific speaking tasks. Field testing involved a total of 144 examinees. Scoring of the reading/listening comprehension test is done manually with scoring key sheets, and involves assigning numerical scores according to specific guidelines, which are provided here. Scoring tables for school placement purposes are also provided. Plans for establishment of national norms are described, and instruction for ordering tests are included. (MSE)