Samuel and Bryant
- Aim - to test the validity of Piaget's standard conservation task and to investigate the conservation ability in children.
- Method - 4 age groups (5,6,7 & 8) 250 children. Three conditions: 1 question, standard & fixed array. 3 materials were used to measure conservation (mass, number & volume) .
- Results - it was found that older children showed greater conservation ability than younger children, as older children made less errors on the conservation tasks. Children made fewer errors on the conservation tasks when asked only one question,…