A NEED FOR AN ADEQUATELY DEVELOPED AND STANDARDIZED INTELLIGENCE SCALE IN THE WHOLE OF LATIN AMERICA RESULTED IN THE WAIS PROJECT WHOSE AIM WAS TO TRANSLATE INTO SPANISH, ADAPT TO SPANISH CULTURE, AND STANDARDIZE THE WECHSLER ADULT INTELLIGENCE SCALE IN PUERTO RICO. FOLLOWING A DISCUSSION OF THE FOUR GENERAL GOALS, THE PROJECT REPORT OUTLINES THE NINE PHASES BY WHICH THE GOALS WERE ACCOMPLISHED. IN THE SECTION THAT FOLLOWS, THE RESULTS OF THE STATISTICAL ANALYSES, SUPPORTED BY NUMEROUS TABLES, ARE PRESENTED IN DETAIL. DATA COVER (1) ANALYSES OF THE TOTAL POPULATION REPRESENTED, (2) THE GUATEMALA EXTENSION OF THE PROJECT, (3) THE DEVELOPMENT OF THE NEW MANUAL, (4) THE STANDARDIZATION SAMPLE OF THE TOTAL POPULATION REPRESENTED, (5) THE PROBLEM OF PREDICTING THE RATE OF CHANGE OF IQ AND THE NEED FOR AUTOMATIC ADJUSTMENT OF NORMS OR RESTANDARDIZATION, AND (6) THE PREDICTION OF NORMS FROM A RELATIVELY SMALL SAMPLE. A DISCUSSION OF THE SERIOUS QUESTIONS THAT CAN BE RAISED ABOUT THE QUALITY OF THE TEST PRECEDES A SECTION CONTAINING CONCLUSIONS, IMPLICATIONS, AND RECOMMENDATIONS. EXTENSIVE APPENDIXES INCLUDE A SPANISH TRANSLATION OF THE TEST MANUAL AND A PAPER ON RANDOM SAMPLING FROM TOTAL POPULATIONS. (AB)