Pearson Edexcel · GCSE · Psychology

    Course version: 1PS0 · Version from Sept 2017

    Development - 1.2 Studies: 1.2.1 Piaget and Inhelder (1956) Three…

    Full specification wording

    Topic 1: Development - 1.2 Studies: 1.2.1 Piaget and Inhelder (1956) Three mountains task

    Piaget and Inhelder (1956) investigated the age children stop being egocentric.

    Checked against the Pearson Edexcel 1PS0 specification (opens in a new tab) on .

    • Point 1 of 2

    Study notes

    From the checked teaching notes for this specification point.

    The idea

    Piaget and Inhelder (1956) investigated the age children stop being egocentric. The procedure involved 100 children aged 4 to 12. They were shown a 3D model of three mountains, each with a distinct feature (snow, a cross, or a house). A doll was placed at various positions, and the child selected a picture representing the doll's perspective. Findings showed children aged 4 to 5 consistently chose their own view, demonstrating egocentrism. By age 7 to 8, children began selecting the doll's view. This supported Piaget's theory that pre-operational children are egocentric. A strength is the detailed qualitative data gathered by asking children to explain their choices, while a weakness is the artificial task lacking ecological validity.

    What earns the marks

    • State the aim of Piaget and Inhelder's study as investigating egocentrism in children.
    • Describe the procedure involving the 3D model of three mountains and the doll.
    • Identify that children aged 4 to 5 typically chose the picture representing their own perspective.
    • Explain the conclusion that the study supports the transition from egocentrism in the pre-operational stage to decentration in the concrete operational stage.
    • Evaluate the study by noting a strength (e.g., rich qualitative data from children's explanations) and a weakness (e.g., lack of ecological validity due to the artificial task).

    Common mistakes and how to put them right

    • Stating that the study investigated conservation.

      Put it right: The Three mountains task specifically investigated egocentrism, not conservation.

    • Claiming that all children failed the task.

      Put it right: Older children (aged 7 and above) were increasingly able to correctly identify the doll's perspective.

    • Confusing the features of the mountains.

      Put it right: The three mountains were distinguished by having snow, a red cross, and a house on top, not by size alone.

    Exam tips

    • Memorise the specific features of the three mountains (snow, cross, house) to accurately describe the procedure.
    • Use the term 'egocentrism' explicitly when explaining the results of the younger children.
    • When evaluating the study, contrast the strength of gathering rich qualitative data with the weakness of the task's artificial nature.

    Try the lesson

    The start of the Topic 1: Development - 1.2 Studies: 1.2.1 Piaget and Inhelder (1956) Three mountains task lesson, made from checked teaching notes for this specification point.

    Have a go first

    What was the primary aim of Piaget and Inhelder's (1956) 'three mountains' study?

    Listen

    Piaget and Inhelder (1956) investigated the age children stop being egocentric. The procedure involved 100 children aged 4 to 12. They were shown a 3D model of three mountains, each with a distinct feature (snow, a cross, or a house). A doll was placed at various positions, and the child selected a picture representing the doll's perspective. Findings showed children aged 4 to 5 consistently chose their own view, demonstrating egocentrism. By age 7 to 8, children began selecting the doll's view. This supported Piaget's theory that pre-operational children are egocentric. A strength is the detailed qualitative data gathered by asking children to explain their choices, while a weakness is the artificial task lacking ecological validity. A strong answer earns marks for these points. State the aim of Piaget and Inhelder's study as investigating egocentrism in children. Describe the procedure involving the 3D model of three mountains and the doll. Identify that children aged 4 to 5 typically chose the picture representing their own perspective. Explain the conclusion that the study supports the transition from egocentrism in the pre-operational stage to decentration in the concrete operational stage. A common slip: Stating that the study investigated conservation. Instead, The Three mountains task specifically investigated egocentrism, not conservation. Exam tip: Memorise the specific features of the three mountains (snow, cross, house) to accurately describe the procedure.

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