Child Development (with notes from readings) Flashcards
Development
Sequence of physical and psychological changes that humans undergo as they grow older
Developmental psychology
The scientific study of age-related changes in behaviour, thinking, emotion, and personality
Different types of data collection
Self-report
Observation
Experimental methods
Clinical interview methods
Self-report data
Usually gathered from parents, but there may be memory and/ or desirability problems
Research designs and definitions
- Longitudinal design: Takes same children and looks at them over time
- Cross-sectional design: Taking a range of individuals and comparing them
- Sequential design: Combines the cross-sectional and longitudinal approaches
Jean Piaget (1896-1980)
- Observed children (his own and at work)
- Proposed a sequence of development that typically-developing children follow (was a new idea at the time)
- Proposed four stages of cognitive development, all of which were clearly defined
Stages of development (Piaget)
- Sensorimotor stage
- Pre-operational stage
- Concrete operations stage
- Formal operations stage
Piaget’s stages by age
- Sensorimotor stage: Birth - 2 years
- Pre-operational stage: 2 to 7 years
- Concrete operations stage: 7 to 12 years
- Formal operations stage: 12 years upward
Formal operations stage is characterised by:
- Abstract reasoning
- Metacognition (thinking about your own thought processes)
What did Piaget say about people who reached the formal operations stage?
Piaget claimed that not everyone reached this stage; unlike the others, he believed that this stage involved an environmental contribution (dependent on exposure to principles of scientific thinking)
Concrete operations stage is characterised by:
- Ability to perform logical analysis (example: four’s an even number, four plus one is an odd number)
- Can empathise with others (egocentrism overcome)
- Can pass conservation task (understanding of cause-effect relations)
Pre-operational stage is characterised by:
- Ability to think logically, as well as symbolically
- Rapid development of language ability
- Classification and categorisation, counting, object manipulation
- Failure of conservation
- Egocentrism: Child’s belief that others see the world in precisely the same way as they do
Conservation
The understanding that specific properties of objects remain the same, despite apparent changes or arrangements of these objects
Criticisms of Piaget (two main ones)
- Babies don’t seem to start with nothing
- Cognitive development isn’t an all-or-nothing phenomenon
Sensorimotor stage is characterised by:
- Cognition closely tied to external stimulation
- Cognition consists of behaviour (learn by doing)
- Object permanence (diff stages)
- Schema formation
- Representational thought occurs towards the end of sensorimotor period; instrumental in imitation, deferred imitation, symbolic play, use of words to represent objects
- Children start talking towards end of this period
Two types of schema formation
- Assimilation: Process by which new information is modified to fit within an existing schema (example: child calling a rabbit a dog to fit within existing dog schema)
- Accommodation: Process by which an existing schema is modified or changed by new experience (example: child broadens schema into ‘animals’ and not just ‘dogs’ in order to accommodate existence of rabbit)
Deferred imitation
Child’s ability to imitate the actions they have observed in the past
Symbolic play
Example: Pretending a block is a phone
Stages of object permanence in the sensorimotor stage
- Birth - 3 months: Looks at visual stimuli, turns head towards noise - doesn’t typically track visual stimuli
- 3 months: Follows moving objects with eyes, stares at spot where object disappeared, but will not search
- 5 months: Grasps and manipulates objects, anticipates future position of object
- 8 months: Searches for hidden object, but shows ‘A not B’ error
- 1 year: Searches in the last place that they saw the object
‘A not B’ error
When babies search in the last place they found object, not the last time they saw it. Example: Losing your keys and going to Auckland to find them, because that’s the last place you lost and found them.
Babies don’t seem to start with nothing: Space and objects
- Visual cliff
- Effect of occlusion
- Understanding of support (develops gradually by 6 months)
- ‘A not B’ error
Visual cliff
Children appear to be able to perceive depth around the time they can crawl (show reluctance to crawl onto side of the ‘cliff’ that looks as though they could fall off it), and even pre-crawling infants may be able to discriminate between the two sides of the ‘cliff’
Effect of occlusion (when one object is blocking the view of another object)
Effect can be investigated through the habituation procedure (infants pay attention to new stimuli more than old stimuli → can use this pattern to determine which stimuli is more novel to infants); found that even 4-month-olds seem to understand the principle of occlusion (even though you can’t see something, doesn’t mean it’s not there)
‘A not B’ error explained as criticism of Piaget
Error seems to simply be difficulty overriding a motor habit (infant knows where the object is, but body hasn’t caught up to its mind yet)
Babies don’t seem to start with nothing: Number and mathematical reasoning
Piaget said that infants had no concept of number and couldn’t conserve number until they were around 6-years-old, but it now appears that even 6-month-olds show some understanding of number
Babies don’t seem to start with nothing: Social cognition
- Newborns would rather look at faces than scrambled faces
- At 3 weeks, infants will attempt to imitate facial expressions
- 9-month-olds will look in the direction of their mother’s gaze
- Intentions: Even 6-month-olds appear to understand actions in terms of intention
Cognitive development isn’t an all-or-nothing phenomenon: Numerical skills in pre-schoolers
- Counting: Even when not using the correct numbers, toddlers have an understanding of counting
- Numerical reasoning: Piaget’s assertion that children can’t conserve number could be due to repeated questioning (children may just be changing their response if they think their response is ‘incorrect’); children younger than 6 can generally conserve number when the task is relevant
Cognitive development isn’t an all-or-nothing phenomenon: Social cognition in preschoolers
- Egocentrism
- Theory of mind
- True and false beliefs (aspect of theory of mind)
Egocentrism
Piaget thought that children were egocentric until 7, but even at 3 and 4-years-old, children can pass a diorama perspective task if it’s relevant. At 2 1/2 to 3 1/2, children will turn a book around so that an adult can view it, and will bend down when talking to younger children. Children under a year will turn to see what their mother is looking at.
Theory of mind
Definition: A group of skills relating to the understanding of the existence of other people’s minds, allows us to be effective in social situations; broccoli vs. crackers study found that 18-month-olds gave the experimenter what she liked, while 14-month-olds gave the experimenter what they liked
Theory of mind: True and false beliefs
On average, 4-year-olds pass the false belief task and 3-year-olds don’t (allows researchers to distinguish between the child’s true belief and their awareness of someone else’s false belief)
Social learning theory
Learn through observation
Cognitive developmental theory
Cognition drives social development
Parents’ role in development
Parents’ behaviour shapes social development of child; parenting style is a two-way street → child’s behaviour may drive parenting style
Peer relationships
Early peer relationships (2 to 3-years-old) are based on what the other can offer
Emotional development
- Expressing emotions: Basic emotions (sadness, happiness) are present from early on, others take time to emerge (require cognitive development; example: embarrassment)
- Empathy: The more parents enquire about how others might feel to the child, the more this drives understanding
- Emotional regulation: Infants are reliant on adults/the environment to soothe them, self-soothing ability develops over time; display rules govern the degree to which emotions need to be regulated in a given situation
Moral development: ‘Not doing wrong’
- Initially entirely guided by consequences
- Internalisation of rules
- Principle of Minimal Sufficiency: If you want children to internalise rules, the consequence should be strong enough to alter behaviour, but not so strong that they feel forced
Moral development: ‘Doing right’
- Empathic distress (not necessarily helpful, but upset at others’ misfortune)
- Offers of help are initially egocentric (help will be what they would want in that situation)
- Prosocial behaviour (voluntary behaviour intended to benefit another)
Kohlberg (1927-1987)
- Studied boys aged between 10- and 17-years-old
- Presented subjects with scenarios (moral dilemmas)
Kohlberg’s Theory of Moral Development: Preconventional level
Definition: Behaviour is based on external sanctions, such as authority and punishment. Stages:
1. Obeying authority and avoiding punishment
2. Behaviour is guided egocentrically by the pleasantness of its consequences to them/fulfilment of needs
Kohlberg’s Theory of Moral Development: Conventional level
Definition: Includes an understanding that the social system has an interest in people’s behaviour. Stages:
3. Wanting to be regarded as a good, well-behaved individual
4. Laws and moral rules maintain social order and must be obeyed
Kohlberg’s Theory of Moral Development: Post-conventional level
Stages:
5. Rules are social contracts, not all authority figures are infallible, individual rights can sometimes take precedence over laws
6. Rules and laws are justified by abstract ethical values, such as the value of human life and the value of dignity
Gender-development: 18 months
Beginnings of gender-typed preference
Gender-development: 3-years-old
- Knowledge of own gender
- More firm preference for toys and friends of own sex
- Ability to assign gender to pictures is limited (tend to go on things like length of hair and clothing)
Gender-development: 5-years-old
Knowledge of gender constancy (prior to 5-years-old, children don’t tend to grasp that gender doesn’t change much throughout an individual’s lifetime)
Bio explanations for gender differences: Exposure of the developing brain to male sex hormones has behavioural effects
- Gandelman, Vom Saal, & Reinisch (1977): Prenatal exposure to testosterone results in more ‘male-like’ behaviour in female mice
- Ward (1972): Male rats deprived of prenatal testosterone behave more like female rats
Bio explanations for gender differences: Anatomy of the human brain shows some ‘gender’ differences thought to be due to different patterns of hormone exposure during development
Broca and Wernicke’s area more developed for ‘females’
Bio gender differences: ‘Sex’ differences in cognitive ability
Example: Verbal ability tends to be better for ‘females’ and spatial ability tends to be better for ‘males’; differences due to hormones