... 3218243032PRESENTSWinter 1998 Volume 9 Number 4Scientific American Presents (ISSN 104 8-0 943),Volume 9,Number 4,Winter1998,published quarterly by Scientific American, Inc.,415 Madison Avenue,New York, NY 100 1 7-1 111. ... person’s everyday tasks and sur-roundings present and how much con-tinual learning, judgment and decisionHuman Intelligence28 Scientific American Presents70 80 90 100 110 120 130HighRiskUphillBattleKeepingUpOutAheadYoursto ... scores have increased world-wide, including those of third-graders in Edmonton, Alberta.Copyright 1998 Scientific American, Inc.Human Intelligence32 Scientific American PresentsOne evening...