Learning Theories & Behavioural Social Work. Definitions According to The Social Work Dictionary...

Learning Theories & Behavioural Social Work

Definitions

• According to The Social Work Dictionary Robert L Barker (ed) NASW Press 1999

• Theory

• A group of related hypotheses, concepts, and constructs, based on facts and observations that attempt to explain a particular phenomenonnon

Methods

• Methods in Social Work

• The specific types of interventions and other activities used by social workers in their professional practices. The term is used especially by social work educators……..

Theories examined today

• Respondent Conditioning or sometimes called Classical Conditioning

• Operant Conditioning

• Observational Learning or Social Learning Theory

Behaviourist Approach in Psychology

• Emphasises Learning

• Experiments on Animals can explain human learning

• Concerned with behaviour and evidence not thoughts

JB Watson’s Behaviourist Manifesto

• All behaviour is learned. When born our mind is tabula rasa.• We learn how to behave in response to our environment, by forming

stimulus-response (S-R) units of behaviour.• Behaviours can be 'unlearned' by breaking these previously formed,

stimulus-response (S-R)connections.

• What behaviourism discovered concerning stimulus-response learning in animals is equally applicable to human beings.

• The mind is private and personal and consists of concepts difficult to study in a scientific way. An organism's observable outcomes - their behaviour - should therefore be the focus of study in psychology.

• For psychology to be thought a true science, its theories need to be supported by empirical data obtained through the careful and controlled observation and measurement of behaviour in an experimental setting.

Ivan Pavlov (1849- 1936)

• Studied salivation in dogs 1891- 1900

• Discovered that dogs started to salivate even when there was no food present

• 1903 published a paper stating the taught salivatory response of dogs is learned

Pavlov’s Experiment

Classical Conditioning

Extinction

• After a while the dog stops salivating.

• The conditioned response is inhibited by non-appearance of food

Reinforcement

• After extinction to resurrect the conditioned response Pavlov had to repeat stage 2 of the conditioning process

• Occasional re-occurrence of the bell and food together brought back the conditioned response.

• Reinforcement makes the learned association more permanent

Spontaneous Recovery

• After extinguishing the conditioned response by not using reinforcement, later ringing sometimes saw the salivation (conditioned response) re-occur. Generally this was weaker than before.

• This suggests we never entirely forget what we learn

Stimulus generalisation

• If dogs were conditioned to a particular tone then dogs would also respond to a slightly higher or lower tone.

• Organisms respond to stimuli that seem similar to the original stimulus.

Stimulus Discrimination

• Dogs presented with bells very different form the original did not respond

• The dogs learned to respond only to particular tones

Can You Think of Examples of this kind of learning?

• Mothers learn to discriminate the sound of their own baby.

• Does the sound of a dentist drill make you respond in particular way?

• Have any of you been bitten by a dog in childhood?

• Or developed other phobias?

An Example

• Social worker is bitten by dog on a visit

• Social worker generalises stimuli to all places where dogs might be – parks, beaches, streets etc and starts to avoid these

• Social Worker generalises fear to all dogs – Pekinese, Labradors etc

Systematic Desensitization

• A technique used for anxiety and avoidance reactions

• Assess the stimuli – in this case dogs• Establish a hierarchy – large fierce dogs,

medium size barking dogs, small yappy dogs, quiet Labradors

• Client is taught to relax• Client imagines moving up the ladder or

hierarchy

Systematic Desensitisation

Child with School Phobia

• Education staff help a child to return to school

• Gradually getting used to the bus route

• Then the playground

• And finally the classroom perhaps for a short period

• Eventually the child can attend school normally

Operant Conditioning TheoryBF Skinner

• Actions operate on the environment to produce behaviour

• Behaviour is altered by its’ consequences

• If the changes are reinforcing then the behaviour is more likely to re-occur

• Based on the work of BF Skinner

Skinner Box

Skinner’s Theory

• “the behaviour is followed by a consequence, and the nature of the consequence modifies the organism’s tendency to repeat the behaviour in the future”

• A reward is a positive reinforcer

• An unpleasant consequence is a negative reinforcer

Two kinds of Reinforcer

• Primary Reinforcer – a stimulus form the environment whose ability to reinforce our response is based on an innate drive e.g. our need for food water warmth etc

• Secondary reinforcer – an environmental stimulus that has become associated with a primary reinforcer. Secondary reinforcers help precipitate primary reinforcers e.g. we use money to buy food etc

Positive Reinforcement

• The ABC of Behaviour (Hudson and MacDonald 1986) is a useful method

• Sometimes called a “Functional Analysis of Behaviour”

• Sometimes people have been reinforcing the wrong behaviour

• EG a child screams and gets a sweet

Antecedents of Behaviour and its Consequences

Antecedents Behaviour Consequences

Mother refuses Child Screams Gets Sweet

Sweet

• Concrete reinforcers such as sweets should be gradually withdrawn

• To be replaced by social reinforcers such as smiles praise and attention

Examples in Practice

• Operant Behaviour therapy with long stay psychiatric patients to improve and develop social skills and reduce unwanted bizarre behaviour

• Use of Star Charts and Smiley Faces with children

• Child Guidance clinics helping parent to reward the positive rather than the unwanted behaviour

• Chaining – a technique to help people with learning difficulties learn tasks

Chaining & Backward Chaining

• Break a complex behaviour into small tasks or links in a chain

• Reinforce the person for performing the last link

• Making a bed – the last link is tucking in the sheet

• Then reward the person for performing the last two links and so on

Negative Reinforcement

• Termination of something unpleasant• E.g. children keep quiet to avoid the pain

of being shouted at• Problem is the shouting may become

rewarding –perhaps some attention is better than none

• Not to be confused with punishment• Positive rewarding of wanted behaviour is

much more effective

To decrease or extinguish unwanted behaviour

• Example of 10 year old child with learning difficulties and communication problems in residential care who regularly whined

• Ignore whining – to extinguish this behaviour

• Reward wanted behaviour – stimulated her with mirror and played with her when she was quiet

Time Out

• Time Out from reinforcement is an extinction process

• It can be successful – but must only be used for short periods

• Lengthy time out is not an extinction procedure but a punishment

• This is ethically wrong• And also much less effective than a

combination of extinction and reward

Do these theories explain all learning?

• Does behaviour have to be rewarded for learning to occur?

• According to Albert Bandura we can learn something without trial and error.

Social Learning Theory

• Bandura demonstrated that behaviour can be changed without rewards

Bandura et al (1963)

• 96 children age 3-6 years

• Split into four groups

• Group 1 saw an adult behave aggressively towards “"Bobo"” doll – shouted punched and hit with hammer

• Group 2 saw the above on film

• Group 3 saw this as a cartoon

• Group 4 shown no violence

Bandura et al (1963) ctd

• Put in room and secretly observed

• Given toys to play with including a "Bobo" doll

• Children's favourite toys were taken to annoy them

• Observed for 20 minutes

Bandura et al (1963) ctd

Results

Group 1 observed adult 99 aggressive acts

Group 2 film 92 aggressive acts

Group 3 cartoon 83 aggressive acts

Group 4 no aggression 54 aggressive acts

Bandura’s Conclusions

• Children who had observed aggression were more likely to behave aggressively

• Children are more likely to copy real aggression than filmed or cartoon aggression

• Some models were more likely to be copied than others

• Children more likely to imitate models similar to themselves e.g. the same sex

Three Effects of Modelling

• We can learn new skills or ideas by observing

• Social skills can be imitated and practised• People can practice and learn to inhibit or

reduce their fear responses – • e.g. if a client is anxious about doing

something we can model the action then he can practice the action in a safe environment before doing it for real

Examples of Social learning

• The child who observes aggression at home and acts this out at school

• The importance of care workers modelling appropriate behaviour to clients e.g. calm, confident, attentive, socially skilled

• Care workers in every day work modelling particular skills e.g. how to make a phone call

• Demonstrating particular skills deliberately for clients to observe and learn

• Setting up groups to help people learn particular skills e.g. social skills – how to interact with other people in particular situations

Implications for Social Care

• People copy what they observe• Behaviour does not always have to be rewarded

for learning to occur• Workers need to be extremely self aware about

how they behave and act• Clients will learn from the situations and

behaviour they observe in all situations – outings, trips, daily life, and family contact, as well as in formal settings set up to change behaviour

Questions?

• Can you identify which methods are used in your placement?

• Can you distinguish between a theory and a method?• Which problems are more likely to be helped by which

methods?• Which methods involve the client in partnership and

empower them?• Can you see ethical or moral problems in using some

approaches if clients are not involved in setting goals?• Can you apply the ABC approach in your placement?

Video

• As you watch the video try and identify the tools of assessment

• What were the conclusions of the initial assessment?

• The methods used – which of these were covered in the lecture today?

• Evaluation – were clients involved in this?

• Were the aims and objectives achieved?