In Robert Siegler's Research on Problem-Solving,children Who Use the Preoperational-Like

Multiple Choice

In Robert Siegler's research on problem-solving,children who use the preoperational-like Rule I

A) take into account only one dimension of a problem.
B) can use a formula to systematically compare relevant factors.
C) can evaluate the merits of abstract proposals.
D) calculate and estimate using multiple dimensions or characteristics.