Are there universal characteristics of adult thought? If so, how do they evolve and manifest themselves in cultures throughout the world? Piaget's formulation of formal operations is the best known and most extensively researched answer to the question regarding universal characteristics. Theoretical alternatives to formal operations differ in the…

The Child Development and Behavior Branch (CDBB), within the Center for Research for Mothers and Children, has grown in the past four years from supporting five programs to supporting seven, with a concomitant increase in the number of grants of more than 50 percent, and a corresponding increase of more than 87 percent in overall funding. During…