Question

According to piaget's theory, children who use hypothetical-deductive reasoning to solve the pendulum problem and can provide a rationale for their solution are closer to the ______ stage of cognitive development.

Answer 1

I believe the answer is: formal operations
formal operations refers to the time period where people started to develop the cognitive ability to understand abstract concept.
For most people, this stage of development is achieved by the age of 12 and would continue to last until adulthoods