The development and evaluation of an interactive computer-based administration and scoring program for the Slosson Intelligence Test (SIT) is discussed. A computer program successfully developed for administering and scoring the Wechsler Adult Intelligence Scale is cited to support the feasibility of developing this proposed SIT program. Testing, scoring, content analysis procedures, and validity evaluation of the computer-based approach, are described. Student input to the IBM 1500 Instructional System, used for the administration of the computer-based SIT (CB-SIT), consisted of typewritten responses which were automatically recorded and evaluated. Anxiety scales were administered by the computer system before and after the CB-SIT, and attitude scales were presented in the conventional paper-and-pencil form. Validation of the CB-SIT was conducted by a comparative evaluation in which the SIT and WAIS were traditionally administered. A Latin square design was used to counterbalance potential order and sequence effects of the three test administrations. Data analysis involved evaluation of the test administration procedure and determination of concurrent validity. Results indicated high correlation between the CB-SIT and the original form and confirmed that an automated administrative system is both feasible and valid for SIT. (LR)