After a child is born, their skills and character are significantly influenced and shaped by their family and caregivers, where they grow up and the behaviours and experiences they encounter
Children should receive the maximum amount of freedom to explore and develop. Should start formal schooling aged 12 once they are able to think critically
First coined the phrase 'nature vs nurture'. Interested in whether human ability was genetic and went on to explore the role of inherited characteristics
Genetic make-up is an important focus. Identical twins share almost 100% of their genetic code, which means that any differences between them, such as in their height or behaviour must result from differences in their unique environments
Help scientists to examine the effect of environment by looking at genetically related individuals growing up in different environments, or genetically unrelated individuals growing up in the same environment
Victor, a young boy aged 11 or 12 who emerged from the woods in Aveyron, France, was abandoned in the woods at roughly 5 years old, could hear but had no speech, and never learned language skills even many years later
It was difficult for Victor to change after his experience in the woods because his ways of being were ingrained in him from his most formative years of childhood
Development continues across the entire life of an individual
There are multiple directions and multiple dimensions to human development
Individualised development can be measured as both growth and decline
Plasticity (or the ability to be shaped or moulded like plasticine) plays a role in human development
Sociological, cultural and economic influences or conditions can alter the natural path of development for certain individuals
Historical development patterns can influence current development patterns, based on the individual's perception of value and worth of those historical patterns
Lifespan development – human development and ageing are lifelong processes
Agency – individuals construct their own lives through the choices and actions they take within social structures (i.e. the opportunities and constraints of social arrangements) and historical circumstances
Time and place – the lives of people are embedded in and shaped by the historical times and places they experience over time
Timing – the developmental consequences of events and transitions are conditional on their timing in people's lives
Linked lives – people's lives are lived interdependently and socio-historical influences are expressed through networks of shared relationships
Attachment theory was developed in the late 1960's by psychiatrist and psychoanalyst John Bowlby and developed by several psychologists, including developmental psychologist Mary Ainsworth
The central idea of the internal working model is that the infant forms a model in their mind about how the world works and they use this to shape their behaviour
Insecure-avoidant: Not upset at separation, child tends not to get close to parent when reunited, often the child turns away, not towards the parent, child often lacks a solid sense of self
Secure: Sees parent as a secure base, child sees themselves as worthy of their parent's love and attention, child has confidence parent will return and shows pleasure at reunion
Insecure-ambivalent: Likely to show distress at separation, child lacks a firm belief that the parent will return, child not easily able to feel worthy of affection from the parent, child has a pessimistic expectation
Verbal and non-verbal interactions such as talking, playing and physical contact can have a strong influence on a child's social, emotional and psychological development
Considered an important part of 'good' social development. Supports children's ability to manage their feelings and behaviours and the way that they develop expectations about themselves and form relationships with others
Can develop as a result of deprivation, separation and unresolved grief. Can lead to short-term and long-term psychological problems. Early attachment patterns will also influence how children develop relationships with non-caregiving adults, siblings and parents
The socio-cultural perspective has similarities with Bowlby's internal working model, but broadens the idea out from just one significant caregiver to the whole range of people and indeed objects that a child will come into contact with
Many theorists such as psychologist Barbara Rogoff have adapted and enhanced Vygotsky's ideas to provide further insights into how children's development revolves around collaboration and participation