UNCLASSIFIEDApproved for public release; distribution unlimited. • This report summarizes the results of Phase I of a study on the fea jbility .-V.and development of a standardized task battery for measiiement of human performance. Phase I includes literature reviews on task batteries, interviews with experts in the field of human performance and analytic studies of the theoretical background of existing and possible task batteries. Recormendations for a further task battery are given.