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8 Cards in this Set
- Front
- Back
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Aim |
To test whether piagets conservation experiment lacked validity due yo its methodology. And that was the reason why children under made more errors and not due to a lack of understanding of conservation. |
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Sample |
252 children from Crediton in Devon. Aged 5-8.5 |
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Rsearch method |
Lab IV = three question conditions, 1,2, fixed array Age of participants 5,6,7,8, Type if conservation task v, m, n DV= number of errors made on tasks |
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Procedure |
One question- witness transform, question asked post transformation if they are the same- to show that traditional conservation task do not always fail because they cannot conserve. They fail because the repetition of the question makes them think they should give a different answer the second time. To show Piaget’s methodology of asking the same question twice was flawed Two qusestion- pre transformation question, witness transformation, post transformation question Fided array- children do not witness transformation- present with post transformation display, and asked question.
Order varied to refuce order effects |
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Findings |
Children performed better on number task, and performed better on ine question condition. As age increased number of areas decreased Piaget said that conservation improved with age, the results support this, another finding that supports piaget, is that ppts did better in number conservation |
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Snapshot |
Only one set of data, compare different ages groups at same time Does not track devlopment of conservation over time |
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Ecological validity |
Low- asked by strangers Unrealistic tasks Materails have no meaning to the children |
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Change |
Problem-snapshot study- does not track development of behaviour over time Change- change to longitudinal- do tasks every year for 3 years, task each child on an annual basis :) See development of behaviour over time- limits usefulness of conclusions :( order effects- practiced, participant attrition |
