Bob has an unknown liquid and must determine what it is.He decides to systematically use a number of tests to determine the correct answer.According to Piaget,Bob has reached the _____ stage of cognitive development.
A)sensorimotor
B)preoperational
C)formal operational
D)concrete operational

Question

Quizplus · Accepted Answer

The formal operational stage is characterized by the ability to think logically, form hypotheses, and systematically test them. This is exactly what Bob is doing in order to determine the identity of his unknown liquid.

Bob Has an Unknown Liquid and Must Determine What It