Samuel and Bryant

• Background: Piaget's theory - a maturational theory of cognitive development
• Four stages:
• Sensory motor stage (0-2yrs)
• Pre-operational stage(2-7yrs)
• Concreate stage(7-11)
• Formal operations (11+yrs)

Aim: Test whether the methodolgy used by Piaget's conservation experiment was the reason children under the age of 8 years old made errors.

Participants: 252 school children- boys and girls. Aged5 to 8.5 - Crediton Devon.

• Four groups of 63
• Each of the four groups were split into 3

1. Standard group (2 Q's)
2. One judgement question (1Q)
3. Fixed array ( didn't see the change)

Method

• Number, mass and volumes experiments
• Ask child was asked to do four trials of each task =12

volume- Asked…