A 30-minute screening battery of tests and subtests selected from the complete 90-minute battery used in USOE Prekindergarten-Kindergarten research plus three locally developed instruments were identified as the most satisfactory single measures of cognitive, motor, auditory, visual, visual-motor coordination, and language development to provide an economical assessment of 4 to 6 year old children. The statistical analyses upon which test recommendations were based are reported. Although the 1961 Experimental Edition of the Illinois Test of Psycholinguistic Abilities was used in this study, the similarity and improvement of the subtests suggests that the desirability of introducing the 1968 Revised Edition in future testing. The appendix contains the locally developed measures: the Behavior Rating Scale (TM 000 185), the Three-Dimensional Auditory Discrimination Test (TM 000 186), and Gross Motor Observations (TM 000 187), and also lists the tests forming the complete 90-minute battery. (Author/PR)