According to piaget, is a type of problem solving method where individuals in formal operational stage of development think more as scientists, devise plans to solve problems, and systematically test solutions.

Which of the following might cause the inflation rate to spike up sharply? the purchasing power of the average consumer decreases due to a sluggish economy. plentiful rainfall and moderate temperatures result in good harvests of wheat and soybeans. the items in the cpi market basket change to account for changing consumer buying habits. prices on world oil markets rise steeply due to war in the middle east.

The social contact theory states that

An refers to a specific factor that has a range of possible values