Research is reviewed on the validity of the Kindergarten Screening Inventory (KSI), an instrument developed by the Houston, Texas Independent School District to screen kindergarten students for possible difficulties that could lead to learning problems. The KSI includes eye-hand coordination, language learning, gross-motor subtests, as well as vision and hearing items. It is concluded that there is some evidence to support the content, criterion-related, and construct validity of the KSI. (RD)