This study investigated the relationship between a test's psychometric characteristics and school staff satisfaction with its use in programmatic activities. The Inventory of Test Use Satisfaction (IOTUS) was used to evaluate two individually administered oral language production tests used in Hawaii's Students of Limited English Proficiency (SLEP) Program: the Basic Inventory of Natural Language and the Language Assessment Scales. Administered to 142 SLEP Program Staff in three Honolulu school districts, the IOTUS surveyed attitudes about each test in four areas of test characteristics: measurement validity, examinee appropriateness, technical excellence, and administrative usability. The top five test characteristics which correlated significantly with test user satisfaction were reliability, item relevance and test bias, problems in test use construct validity, and experience with test administration. Results indicated only half of the respondants were satisfied with test use. Systematic and intensive involvement of test users in the test development process is suggested. (BS)