This catalog describes 342 tests appropriate for identifying the needs of bilingual students, for diagnosing their ability, and for assessing programs. The tests are appropriate for ages kindergarten through adult, and are written in the following languages: English, Spanish, Arabic, Cambodian, Cantonese, Chinese, Cherokee, Chamorro, Crow, Choctaw, Cheyenne, Dutch, French, German, Hebrew, Ilocano, Italian, Japanese, Korean, Mandarin, Mohawk, Navaho, Nukuran, Native Alaskan, Portugese, Pilipino, Polish, Ponapean, Pueblo, Russian, Tagalog, Ulithian, Vietnamese, Yapese, Woleina, Yiddish, and Yupik. The majority are written in English or Spanish or in both languages. The tests cover the following catagories: (1) language proficiency; (2) language dominance; (3) self concept and personality; (4) sociocultural and attitudes; (5) reading and reading readiness; (6) academic achievement; (7) aptitude and interests; and (8) miscellaneous--including school readiness, psychomotor performance, learning problems, and individual development. Descriptions of each test provide, whenever possible: test name; developer (commercial vs. local publisher); source of availability; copyright date; language; purpose and content; age level; administration; written vs. oral response; scoring; types of available scores; cost, and a sample item. (GDC)