A comparison between standard kindergarten programs and AEL's preschool program was conducted to gain some insight into the desirability of using the laboratory-developed procedures rather than standard classroom procedures for affecting learning in 3-, 4-, and, especially, 5-year-old children. Initial differences in intelligence test scores were observed. The group which received all components of AEL's Preschool Education Program achieved higher scores than a control group on all three parts of the test designed to measure achievement of cognitive objectives. The kindergarten group also achieved higher scores on one part of the test of cognitive objectives. The girls in all treatment groups outscored the boys on most tests. AEL's program was shown to reach the objectives measured by two subtests where other programs including the standard kindergarten program did not. The achievement of these objectives implies that AEL's Preschool Education Program is an acceptable, if not preferred, alternative to other early childhood education programs. (Author/CK)