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Piaget's Developmental Psychology. He believed that childrens logic changed as they developed through their four stages of life Piaget came to this conclusion after completing his cognitive development test.

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Psychology Developmental Psychology Piaget (1896-1980) believed that there was a quantitative difference between the intelligence of adults, young children and older children. He believed adults have better knowledge of the world and because children do not use the same logic in there thinking. He believed that children's logic changed as they developed through their four stages of life Piaget came to this conclusion after completing his cognitive development test. Unlike psychologist Siegler and Huges, Piaget is a theoretical psychologist and carried out many experiments to illustrate his theories. These stages have been critisied by many psychologist including Hughes, Siegler, Rose, Blank. Sensorimotor Stage Piaget believed that a new born had basic biological motivations, and acquired knowledge by accommodation and assimilation, and once a child has acquired these schemas it would be at equilibration. It has been argued that Piaget underestimated the intelligence of a newborn. Piaget's sample did not illustrate a wide variety of children therefore his experiment cannot be related to every child at that relevant age. His study was also only preformed on his own children therefore results could have been bias. Similar experiments were devised by other psychologist giving different conclusions, indicating Piaget's results were not always reliable. Piaget's first stage stated that a baby (0-2) ...read more.


Four and five year olds selected the picture showing what they could see, this suggested that they thought the doll could see what they could identifying egocentrism. However most seven years old were able to identify the correct picture. Due to Piaget's selection of children it was very difficult to apply his findings to others, his own children were used throughout most of his experiment and any others were from well educated backgrounds. It can be argued that this experiment lacked ecological validity as the child could not relate to the situation they were presented with. Hughes devised a task to test egocentrism in a child but relating to an everyday situation, children as young as three and a half answered the question correctly, and 90% of children tested altogether were able to give the correct answer. Concrete operational stage A child enters this stage when they understand the appearance of something may change although the item itself remains the same. Piaget tested this stage by setting out a row of counters in front of each child, than asking the child to make another row the same as the first one. Piaget would than spread out his row of counters and ask the child if there were still the same amount of counters. ...read more.


Results showed that eventually the child would take into account the interaction between the weight and the disc but would not achieve this ability until they were between 13 and 17. This concluded that children's cognitive development is based on acquiring and using rules in increasingly more complex situations instead of stages. Conclusion Piaget tested his children and well-educated professionals therefore making his findings ungeneralised and potentially bias. Subsequent questions relating to the child's individual answer may have led children to give the answer researchers were looking for. Piaget underestimated the ability of children's social understanding. A child's perception of an adult the importance of a familiar context and the meaning of a second question all affect a child's performance. Weaknesses in Piaget experiment prevent children from showing what understood. Piaget overestimated the age at which children entered the formal operational stage (Siegler). As Piaget focused on individual children he failed to take social settings into account. He failed to show that development is continuous and not in stages Evidence suggests that environmental factors, ethics and gender could alter a child's development. Small samples and controllability of variables were not taken into account. Piagets had very little evidence to support his findings and believed that his finding could be applied to every child. Piaget's focus on qualitative development has played an important role on education. Piaget opened the opportunities for others to learn and discover more on how children development. Word count: 1350 ?? ?? ?? ?? ...read more.

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