cognition and development

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Psychology

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Who was Jean Piaget?
- a Swiss developmental psychologist who studied how children develop psychologically as they mature
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what did Piaget believe
- children dont just know less than adults but actually think an entirely different way to adults
- he believed that the way humans think is based on our human genes and interaction with the environment
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what is constructivism
The view that humans generate knowledge from an interaction between their experiences and their ideas
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what did Piaget call the basic building block of intelligent behaviour
schema
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what did Piaget believe about schemas
- all our knowledge of the world is stored there
-we have different schemas for different things (can be simple or complex)
- we are constantly using our schemas to make sense of the world
- some schemas are innate, our schemas change and grow in complexity with experience
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in what way did Piaget believe children were primed for learning
biologically
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what did Piaget believe happened if we cant understand something
we enter a state of disequilibrium - which is very uncomfortable, and we want to return to equilibrium
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how did Piaget believe we could achieve equilibrium
discovering and acquiring the new information we need to make sense of our experiences - making a new schema or adding to an existing one
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what is assimilation
A form of learning that takes place when we acquire new information or a more advanced understanding of an object, person or idea. When new information does not radically change our understanding of the topic we can incorporate (assimilate) it into an existing schema
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what is accomodation
A form of learning that takes place when we acquire new information that changes our understanding of a topic to the extent that we need to form one or more new schemas and/or radically change existing schemas in order to deal with the new understanding
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how does equilibrium occur according to Piaget cognitive development theory
assimilation and accomodation
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Strengths of Piaget's cognitive development theory
- research support for the theory that some schemas are innate
- research support showing that schemas are individual and vary between people
- application and enducation
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how is research support for schemas being innate a strength for Piaget cognitive development theory
Frantz (1961) showed that babies as young as four days old preferred looking at features of the face than jumbled up features. This means that this schema must be innate as they couldnt have learnt to recognises faces at so young
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how is research support showing schemas are individual and vary between people a strength for Piaget cognitive development theory
Howe (1992) showed children formed individual schemas:
- participants aged 9-12
- groups of 4 investigated and discussed movement of an object down a slope
- all increased knowledge, but their understandings remained different
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how is application and education a strength for Piaget cognitive development theory
Piaget's theory that children construct their own schemas led to schools placing an emphasis on discovery learning with practical learning (so they learnt how things work and relate to each other)
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limitations of Piaget's cognitive development theory
- the role of other people is underestimated
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how is the role of other people being underestimated a limitation for Piaget cognitive development theory
other theories see learning as a social theory, Piaget centered his theories on what the individual child was doing and saw teachers as minimally involved in setting up discovery activities but nothing more. However we are social species and much of our learning happens in a social context through social interaction. Not acknowledging this makes Piaget's theory incomplete
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what debates are linked to Piaget's cognitive development theory
determinism
nature and nurture
nomothetic
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how is determinism linked to Piaget's cognitive development theory
we keep information we have learnt in schemas. These schemas determine how well we lean new information. Some schemas are innate
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how is nature and nurture linked to Piaget's cognitive development theory
human genes which means we use schemas to organise our knowledge + what our actual understanding is develops from our experiences
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how is nomothetic linked to Piaget's cognitive development theory
general rules applied to all were used
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how does Piaget believe development happens
in a sequence which is one process which includes all aspects of cognition developing together
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what are the four stages for intellectual development in children according to Piaget
- sensorimotor stage: 0-2 years
- pre-operational stage: 2-7 years
- concrete operational stage: 7-11 years
- formal operational stage: 11+ years
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what happens in the sensorimotor stage in Piagets intellectual development
- from around 8 moths and completely by 18-24 months object permanence develops
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what does sensorimotor mean in Piaget's intellectual development theory
sensori = physical sensation picked up by touch, sight, sound
motor = learning to move and respond to the environment. As children move through this stage they become more masterful of and intentional with their movements
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what is object permanence in Piaget's intellectual development theory
the understanding that things exist when they are outside direct observation by the individuals; that objects and people exist as separate permanent things
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how did Piaget test for object permanence
- hiding an object under a blanket
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What were Piaget's findings from hiding an object to test object permanence
- before 8 months 'out of sight out of mind'
- from 8 months the infant would look for the object
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how did Piaget test for incomplete object permanence
A-not-B error test
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what did Piaget test in the A-not-B error test
babies are shown an object and see it repeatedly hidden under cloth A. They look for it under cloth A, then when it is hidden under cloth B the child continues to look for it under A.
Past 1 years of age, babies do not tend to make this error
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what did Piaget test at the sensori-motor stage
object permanence
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what did Piaget test in the pre-operational stage (2-7)
conservation, egocentrism and class inclusion
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definition of conservation
The ability to realise that quantity remains the same even when the appearance of an object changes.
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what three areas did Piaget find were deficit in the pre-operational stage
number, mass and volume
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how did Piaget test that children in the pre-operational stage were deficit in reasoning numbers
- the adult set up two identical rows of coins; asks "are there the same number of coins or different?"
- adult squashes one column; asks "same amount or different?"
- child picked the squashed line as having less coins
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how did Piaget test that children in the pre-operational stage were deficit in reasoning mass
- adult sets up two identical columns of play doh; askes are they the same amount or different
- adult squashes one column; asks if they are the same or not
- child said squashed had a lower mass
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how did Piaget test that children in the pre-operational stage were deficit in reasoning volume
- adult sets up identical containers asks if theyre the same or different
- adult pours one container into a container of a different shape and repeats the question
- child picks the taller glass as having more liquid in
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definition of egocentrism
The childs tendency to only be able to see the world from their own point of view. This applies to both physical objects - demonstrated in the three mountain task - and arguments in which a child can only appreciate their own perspective
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definition of de-centre
being able to see something from anothers point of view by focusing on more than one aspect of the problem
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how did Piaget test egocentrism
3 mountains task
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what happened in the 3 mountain task
- 3 different coloured mountains on a board, children had photos of the mountains from different views. They had to match their own view and the dolls to the photo
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definition of class inclusion
understanding that things can be put into categories or classes. Very young children understand that things can be placed into categories and are able to do this. However, they dont show an understanding that categories have subjects
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how did Piaget test class inclusion
he showed that children aged 2-7were able to put a pug, Labrador and German shepherd into 'dog' category but could not accurately answer the question "are their more dogs or animals?" when shown a display of cats and dogs together
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what did Piaget discover happened at the concrete-operational stage (7-11)
- children have much better reasoning abilities (operations)
- child can conserve, de-centre and understands class inclusion
- child CANNOT think in an abstract way
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how did Piaget show that children in the concrete-operational stage had concrete but not abstract thinking
- if all yellow cats have two heads and I have a yellow cat, how many heads does it have?
- children in the concrete operational stage get distracted by the fact that their experience tells them that cats don't have two heads so are unable to separate the content from the form
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what did Piaget find at the formal operational stage (11+)
children become able to focus on the form of an argument and not be distracted by its content. This allows for scientific reasoning, logical argument and an appreciation for abstract ideas
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strengths for Piaget's stages in intellectual development
- supporting evidence for the biological basis for the theory
- useful applications
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how is supporting evidence for the biological basis for the theory a strength of Piaget's stages of intellectual development
- there is a large body of supporting evidence for the theory of biologically driven stages in cognitive development
- however...some evidence shows that children go through the stages at vastly different ages to others
- Piaget suggests that the stages should be taken as rough estimates of the time when children go through the changes, and not fixed schedule. There will be individual differences
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how is useful applications a strength for Piaget's stages of intellectual development
- one long-lasting key idea is that the difference between the way children and adults think is qualitative
- for real learning to take place, a child must be at the appropriate stage in development
- so teaching a pre-operational child complex mathematical formulae will not be successful
- this has informed primary school teaching. In 1967 in the UK, a hugely influential report on primary teaching was published - it was largely based on Piaget's work
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limitations for Piaget's stages of intellectual development
the methodology is flawed
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how is the methodology being flawed a limitation for Piaget's stages in intellectual development
- in the conservation task the child may have though the answer was 'yes' as the adult changed something - so the child would be responding to demand characteristics
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what type of theory is Vygotsky's
a social interactionist theory
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what did Vygotsky focus on
the role of social interaction and culture in development of cognition - how the child internalises the understanding of others
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How did Vygotsky's theory differ from Piaget
- Piaget believed children drive their own learning, while Vygotsky believed that learning is facilitated by social interaction
- Vygotsky saw the child as an APPRENTICE to a more knowledgeable other, Piaget saw the child as a SCIENTIST discovering things for themselves
- also Vygotsky saw learning as a continual process rather than stages
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definition of scaffolding
The process of helping a learner cross the ZPD and advance as much as they can, given their stage of development. Typically the level of help given in scaffolding declines as the learner crosses the ZPD
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what was the role of scaffolding in Vygotsky's study
- a more knowledgeable other 'expert' provides a supportive framework of instructions and guidance
- the support is gradually withdrawn
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what are some features used in Vygotsky's scaffolding
- play: to maintain interest and participation
- demonstration: show the child clearly what to do
- talking: by the expert talking, the child is encouraged to do more and more of the process alone - verbal support/prompt/encouragement
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examples of formal classroom activities that involve scaffolding
- peer tutoring
- teacher demonstration
- use of writing frames
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what is the goal of scaffolding
indipendence
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what is the zone of proximal development according to vygotsky
- the area between what the child can do unaided and what the child can learn to do with help - the difference between actual current ability and potential ability
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how does scaffolding effect the zone of proximal development
scaffolding extends the childs abilities and allows the child to travel faster and further from their current ability level
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why is language important in scaffolding and zone of proximal development in children according to Vygotsky
language enables a shift from elementary mental functions to higher mental functions
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similarities between Piaget and Vygotsky
- children are active learners
- children learn increasingly complex skills as they get older
- emphasise nature and nurture
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differences between Piaget and Vygotsky
Piaget: - readiness (must be at appropriate stage)
- happens in stages
- views child as scientist (child builds own understanding)
Vygotsky: - acceleration (through scaffolding)
- continual
- views child as apprentice (learns through scaffolding)
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strengths for Vygotsky's theory
- support for scaffolding
- support for zone of proximal development
- application in education
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how is support for scaffolding a strength for Vygotsky's theory
Conner and Cross (2003) illisteated the gradual reduction of support from the expert in a longitudinal stud of 45 children
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how is support for the ZPD a strength for Vygotsky
- Roazzi and Bryant (1998) gave children 4-5 some sweets in a box and asked them to estimate how many there were
- in condition 1 the children worked alone and in condition 2 they worked with an older child
- in condition 1 the child failed to make a good estimate but in condition 2 got prompted by the expert so could master the task
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how is application in education a strength to Vygotkys theory
a review of usefulness of teaching assistants (2005) found they were effective in students learning if well trained
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limitations for Vygotsky's theory
- individual experiences are ignored
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how is individual differences being ignored a weakness for Vygotsky's theory
- some children may not learn best through social interaction so the theory will not fit for all children
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what debates are linked to vygotsky's theory
- holistic: it studies the individual in their social and cultural context
- nomothetic: large samples to create general law
- deterministic: no free will as it states how children learn
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what did Baillargeon do
- she challenged Piaget's ideas about babies abilities in the sensorimotor stage, including object permanence
- she tested babies understanding of object permanence and occlusion over many years, using violation of expectation (VoE)
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What is the violation of expectation method?
- VoE research involves showing babies something that they didnt expect to see happen, something which is impossible if you understand physical laws
- they measure whether the baby is surprised by how long they look at the scene that is manipulated for them
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what were the controls in Baillargeon's study
- baby was positioned on an adults lap so they couldnt see the adults face - reduced demand characteristics
- the person timing couldnt see the display, only the babies face - reduced investigator bias
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strength of Baillargeon's theory
- her research may give us a better understanding of infant capabilities than Piaget's
- high control
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how is her research possibly giving us a better understanding of infant capabilities than Piaget a strength for Bailargeon
Piaget has been criticised because perhaps in his studies babies looked away because they just lost interest rather than because they thought the object had ceased to exits
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how is high control a strength for Bailargeon
babies were sat on their parents lap for the studies, but any influence from the parent was controlled by the parent closing their eyes and not interacting with their infant during the trials - therefore it was more valid as the baby were picking up less demand characteristics from parents
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limitations in Bailargeons study
it is hard to judge what an infant understands
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how is it being hard to judge what an infant understands a limitation for Bailargeon
just because the infant responds as if they understand physical laws, we cannot know that they really do understand them. we are making an assumption which may not be true. Responding to a physical event is not the same as reasoning about it
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what debates in Bailargeons theory linked to
- nomothetic: large studies to establish general laws - all humans have an understanding of physical laws from innate PRS
- nature: PRS - gives innate understanding
- nuture: builds on PRS through experience
- determinism: biological (PRS), environmental experiences and hard determinism
- less reductionism: lowest level, on simple factor
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what does violation of expectation (VoE) mean
when an event happens that isnt consistent with the expectation of what should have happened - violates expectations
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how did Baillargeon believe infants displayed that their expectations had been violated
the child would gaze longer, which the researchers took as their curiosity about their violated expectations
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description of Baillargeons study
- 24 infants aged 5-6 months were shown 4 events of a rabbit passing behind a block
- 3 events were possible as the rabbit could move without being seen
- one condition the rabbit was too tall to pass behind the block with a window and not be seen (violates expectations)
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How did Ballargeon explain the reaction the babies displayed
infants are more interested in the impossible so would pay attention to impossible events to further develop their understanding of the physical world
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what did Selman believe about perspective taking
- the ability to see a social situation from another perspective
- he believed this was a social (nurture) development not just a biologically driven cognitive on
- much of our social functioning relies on perspective taking
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what did Piaget's three mountain task test
- physical perspective taking (the ability to de-centre and see someone else's physical point of view)
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what did Selman propose about perspective taking
- the ability to take others perspectives develop through 5 levels
- the levels show an age-rated shift from egocentric view to a broader cultural/moral understanding of others point of view
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what did selman believe about perspective taking skills
- vitally important for all social behaviour, particularly pro social behaviour
- children with poor perspective taking skills had more difficulty with relationships and were less popular
- positive correlation between perspective taking skills and pro social behaviour
- negative correlation between perspective taking skills and aggression
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what are the 5 levels in selmans perspective taking
egocentric (3-6), social-informational(6-8), self-reflective(8-10), mutual(10-12), societal (12+)
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what happens at the egocentric stage according to selman`
children may recognise that the self and others can have different points of view, but frequently confuse the two
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what happens at the social informational stage according to selman
children understand that different perspectives may result because people have access to different information. Will not understand differences in opinion if information is the same, so not truly able to imagine a different point of view
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what happens in the self-reflective stage according to selman
child can now view things from someone elses perspective in addition to their own and understands others are able to do this too. But they will only be able to consider one point of view at a time
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what happens in the mutual stage according to selman
child can consider two peoples points of view at the same time
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what happens in the societal stage according to selman
individuals understand that decisions are now made with reference to social conventions as understanding anothers point of view may not be enough to ensure agreement
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how did selman use dilemmas
to study children's perspective taking - a dilemma is a problem offering possibilities, neither of which is unambiguously preferable
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an example of selman using dilemmas
the holly dilemma
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what did selman discover about perspective taking from the holly dilemma
he identified five distinct levels of perspective taking. He found that these correlate with age; higher levels enable better social functioning
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what happened in selman's holly dilemma
- imagine you are holly who is 8 and loves to climb trees
- holly is the best tree climber in the neighbourhood, but one day she falls and hurts herself, so her dad makes her promise not to climb trees again
- there is a kitten stuck up a tree and holly is needed to climb and get it or it'll fall - but it breaks her promis to her dad
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strengths of Selmans perspective taking research
- application
- support for the progressive nature of the levels
- support for the experience being an essential part of the process
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how is application a strength of selmans perspective taking research
the application build on the previous strength: if perspective taking can be developed by experience then there are applications for schools and prisons. Selman believed that every primary school should aim to develop perspective taking in its children. social skills training programmes are used in therapeutic and prison setting to help develop perspective taking and improve peoples social skills and ultimately the quality of life