Jean Piaget, a psychologist known for his work on children's cognitive development, developed a simple conservation test that can reveal how differently children think compared to adults.

Piaget’s Conservation Tasks Piaget also laid out other developmental stages with their own characteristics. Here’s a demonstration of a four-year-old’s lack of “conservation,” or the ...

Piaget's conservation paradigm was used to assess 5-7-year-old children's understanding of the permanence of various kinship roles. A distinction was proposed between single- and multiple-kinship ...

Piaget devised a variety of tests for assessing the child's intellectual stage. For example, he calls one of his experiments "conservation of matter." The young child is shown two clay balls, each ...

129 first- and second-grade students were individually tested on 13 measurement and conservation items. Contrary to Piaget's conclusions, children in the earliest stages of development of conservation ...