In Piaget's water conservation task, what is the expected response from the majority of 11-year-olds?

• A. Stating that the water in the taller beaker is greater in quantity.
• B. Stating that the amount of water in the taller beaker is the same as in the original beaker.
• C. Stating that the amount of water in the taller beaker is greater in quantity.
• D. Stating that the water in both beakers is equal.

Answer: (B)

In Piaget's water conservation task, children are presented with two beakers containing the same amount of liquid. One beaker is taller and narrower, while the other is shorter and wider. When asking children to assess whether the amount of water is the same after one of the beakers has been poured into another, younger children may struggle with this concept and often believe that the taller beaker holds more water, indicating a lack of understanding of conservation.

However, by the age of 11, most children have developed the cognitive ability to understand conservation, which is a key milestone in Piaget's concrete operational stage of development. At this age, they can recognize that the volume of liquid remains constant despite changes in shape or appearance. As a result, the expected response from the majority of 11-year-olds is to state that the amount of water in the taller beaker is the same as in the original beaker. This understanding reflects their ability to reason logically about physical properties, confirming the principle of conservation.

Being able to articulate that the amount of water is unchanged regardless of the beaker's shape indicates a well-developed cognitive skill set, distinguishing them from younger children who may not yet grasp this concept.