THE REVISION OF THE HISKEY-NEBRASKA TEST OF LEARNING APTITUDE (H-NTLA) WAS UNDERTAKEN TO MODERNIZE THE TEST MATERIALS, TO EXTEND THE TEST, AND TO PROVIDE UP-TO-DATE NORMS ON DEAF SUBJECTS AND HEARING SUBJECTS. THE ITEMS CONSIDERED FOR THE REVISION WERE ADMINISTERED TO NORMAL HEARING, DEAF, AND RETARDED SUBJECTS AGED 3 TO 17 YEARS. FOLLOWING THE ANALYSIS, THE RETAINED ITEMS WERE GROUPED INTO 12 POWER SUBTESTS. FINAL SAMPLES CONTAINED 1,079 DEAF CHILDREN (MOSTLY FROM SCHOOLS FOR THE DEAF) AND 1,074 HEARING CHILDREN (SELECTED ON THE BASIS OF PARENTAL OCCUPATION) OVER A 10 STATE AREA. NORMATIVE, RELIABILITY, AND VALIDITY DATA ARE BRIEFLY DISCUSSED. THE PERFORMANCES OF DEAF AND HEARING CHILDREN ON OTHER TESTS AND ON THE H-NTLA ARE COMPARED AND DISCUSSED. THE H-NTLA MAKES POSSIBLE THE EVALUATION OF A DEAF CHILD USING NORMS BASED ON DEAF CHILDREN. RESEARCH POTENTIAL OF THE H-NTLA IS EVIDENT IN ITS CURRENT USE IN A NUMBER OF PROJECTS DEALING WITH DEAF, RETARDED, AND EMOTIONALLY DISTURBED CHILDREN. PRICE AND AVAILABILITY INFORMATION ARE INCLUDED. (MK)