The Ohio Trade and Industrial Education Achievement Test battery is comprised of seven basic achievement tests: Machine Trades, Automotive Mechanics, Basic Electricity, Basic Electronics, Mechanical Drafting, Printing, and Sheet Metal. The tests were developed by subject matter committees and specialists in testing and research. The Ohio Trade and Industrial Education Services, Instructional Materials Laboratory, publishes and distributes the tests and provides the services of scoring, reporting, and evaluating test results. The tests have been continuously revised since 1958 through study of item analyses; content, construct, and predictive validities; reliability coefficients; and standard error of measurements. The trade tests, the Stanford Arithmetic Achievement Test, and the California Survey of Mental Maturity have been normed of the same population to allow generalizations about an individual's intelligence and achievement scores. The multiple-choice questions require the student to solve problems, analyze data, recall specific facts, react to generalizations, use abstractions, and put together parts to form a whole. Administration time for the various tests varies from 4 1/2 to 7 1/2 hours. The test results aid in curriculum reorganization and improvement of instruction, as well as provide information on student achievement. The appendixes provide test profile norms and a list of schools participating in the testing program. (HC)