4.2.1 Approaches in psychology Flashcards
State the history of psychology (9 stages)
Name 5 features that make something a science
- Objectivity
- Control
- Predictability
- Hypothesis Testing
- Replication
Define Objectivity
(features that make something a science)
Scientific observations are recorded without bias
Define Control
(features that make something a science)
Scientific observations take place under controlled conditions
Define Predictability
(features that make something a science)
Scientists using results and knowledge gained from experimenting to predict future behaviours
Define Replication
(features that make something a science)
Each experiment replicated exactly = people have confidence in the results
Define Hypothesis Testing
(features that make something a science)
Theories generate hypotheses = can be tested to strengthen/disprove theory
Who was Wilhelm Wundt and what did he do for psychology?
- Father of psychology
- 1st psychologist - 1875 created 1st psychological laboratory in Germany, Leipzig
- Separated psychology from philosophy, physiology and biology
- → focused on studying mind in more structured/scientific way
- Using structuralist and reductionist approach, tried to uncover what people were thinking/experiencing
What is reductionism?
Idea that things can be reduced to simple cause-and-effect processes
Since Wundt believed in reductionism and came from a biological background, he wished & believed…
Wished to study structure of human mind & believed behaviours such as perception and sensation could be broken down into smaller, measurable parts
(used introspection to measure these parts)
What is introspection?
- Method of collecting data
- Involves observing & describing inner mental states
Introspection was the __ ____ _____ attempt to study the mind
1st systematic experimental
Describe how Wundt conducted introspection
- Trained participants to become self-aware enough to observe/report back their inner mental processes and emotional states
- Then asked participants to describe their experiences when presented with a controlled stimulus (e.g. pictures or auditory tones)
What did introspection allow Wundt to do?
Analyse different participant responses = general theories about perception/mental processes
Name 2 pros of introspection
- More than just passive acceptance of facts
- Way which scientific method is carried out = casual relationship
Explain how introspection is more than just passive acceptance of facts
- Relies on objective & systematic methods of observation
- Data acquired using scientific method
Name 3 cons of introspection
- Unreliable
- Inaccurate
- Lack of ecological validity
Explain how introspection is unreliable
- Relies on unobservable behaviour
- e.g. Participants report on unobservable processes like memory and perception ∴ their accounts can’t be confirmed
- ∴ Replicating Wundt’s work ≠ same results = research unreliable
Explain how introspection is inaccurate
- Nisbett and Wilson: have little understanding/awareness of causes of our own behaviour
- ∴ introspection = inaccurate ∵ can’t self-report on processes aren’t aware of
- e.g. person = implicitly racist, but ∵ attitude exists
outside of their conscious awareness = cannot report reason/cause of their behaviour
- e.g. person = implicitly racist, but ∵ attitude exists
Describe the emergence of psychology as a science
- Emerged due to empiricism (empiricists believe knowledge comes from observation and experience)
- Early psychology had 2 assumptions: behaviour is caused
by something & ∴ predictable- Assumptions developed into scientific method
- Waston’s and Skinner’s development of research = laboratory experiments + controlling variables
- Developments of technology (e.g. EEG scans = objective evidence of brain activity)
Is psychology a science?
State 2x ‘for’
- Allport (1947): psychology same aim as science
- To predict, understand and control
- Behavioural, cognitive & biological approaches use scientific procedures to investigate theories
- Controlled and unbiased
Is psychology a science?
State 3x ‘against’
- Some approaches don’t use objective methods to study behaviour
- Use unreliable methods e.g. interview techniques = biased and interpreted differently
- Hard to get representative sample of population for a study
- ∴ findings can’t be reliably generalised
- Psychological experiments open to extraneous variables e.g. demand characteristics = hard to control
How did behaviourism (‘Learning Theory’) come about?
- Started in America in 1900s mainly through John Watson
- Felt earlier psychological research wasn’t scientific enough
- ∴ came up assumptions on which to base a scientific approach to psychology
What are the 4 basic assumptions of the behavioural approach?
- Behaviour is learned from past experience
- ONLY concerned with observable behaviour
- It’s valid to study behaviour of animals as they share same
principles of learning - We are born a blank slate & are product of our environment - no biological influence
What is classical conditioning?
Type of learning in which an existing involuntary reflex response is associated with a new stimulus
(aka Learning by assocation)
Who discovered classical conditioning and when (& doing what)?
Ivan Pavlov (in Russia - early 1900s) while conducting work on dogs
Describe how Pavlov discovered classical conditioning
- Was investigating salivation processes & noticed dogs would salivate before they got food
- Noticed they salivated when a stimulus was presented that coincided with feeding time (e.g. person)
- Conducted an experiment: gave food & rang bell at same time - repeated this procedure
- Eventually, bell itself = dogs salivating ∵ made association between bell & food
Draw the process of classical conditioning (Pavlov’s experiment)
Name the 5 important features that Pavlov discovered about classical conditioning
- Timing
- Extinction
- Spontaneous recovery
- Stimulus generalisation
- Stimulus discrimination
Explain ‘timing’ in classical conditioning
Conditioning only occurs if 2 stimuli are presented at the same time
Explain ‘extinction’ in classical conditioning
Newly established response can be terminated
Explain ‘spontaneous recovery’ in classical conditioning
Following extinction: if 2 stimuli paired together again = association between them is made quicker
Explain ‘stimulus generalisation’ in classical conditioning
If stimulus has characteristics that are close to conditioned stimulus = CR will still be produced
(e.g. bell with higher pitch)
Explain ‘stimulus discrimination’ in classical conditioning
There’s a cut-off point when stimulus generalisation will not occur ∵ stimulus is too different to be generalised
(e.g. using a tune instead of a bell)
Give an example of classical conditioning occuring in the real world
- Babies: Attachments are leaned through stimulus of food (UCS) producing a happy response (UCR)
- Natural response to being fed (happiness = inborn reflex)
- However, when food is paired with the mum (who gives the food) = she becomes a conditioned stimulus
- Eventually, mum on her own = happy response from infant ∵ of association between the 2 stimuli (food and mum)
What was the aim of Waston and Rayner’s Little Albert study (1920)?
See if humans can acquire fear through classical conditioning
Describe the method used in Waston and Rayner’s Little Albert study
- 11-month old boy presented with series of stimuli (white rat)
- Initially, showed no fear response
- Researchers struck metal bar behind him = loud noise → automatic fear response (UCR)
- Every time Albert reached for the rat, paired it with a loud noise
- Repeated twice at first, 5 more times a week later
What were the findings of Waston and Rayner’s Little Albert study?
Albert presented with white rat = upset and cry
+ extended to other white fluffy objects
What was the conclusion of Waston and Rayner’s Little Albert study?
A fear response to white fluffy objects had been conditioned in Little Albert = possible to use classical conditioning to learn a fear response
Name a pro of Waston and Rayner’s Little Albert study (1920)
Supports Pavlov’s Research
Explain how Waston and Rayner’s Little Albert study support Pavlov’s research
- Shows how human can learn via classical condition
- Little Albert learned to associate all white fluffy animals with feeling of fear
- Strengthens behavioural theory
Name 3 cons of Waston and Rayner’s Little Albert study (1920)
- Unethical
- Conducted on one participant
- Laboratory study
Explain how the Waston and Rayner’s Little Albert study was unethical (& why this is a problem)
- Conducted without consent + involves harming participant
- Cannot be replicated → affects validity/accuracy of classical conditioning as an explanation for human behaviour
Explain what the problem was with conducting an experiment on 1 person?
(Waston and Rayner’s Little Albert study)
Cannot be generalised to wider population ∴ can’t say classical conditioning explains fear in all humans
Explain what’s the issue with a laboratory study?
(Waston and Rayner’s Little Albert study)
Lacks ecological validity as situation was artificial
What is operant conditioning?
Learning through consequences of behaviour
(behaviour rewarded = it’ll be maintained/increased)
(if it’s punished = behaviour ceases)
What is positive reinforcement?
Receiving a reward when a certain behaviour is performed
What is negative reinforcement?
Occurs when human/animal performs a certain behaviour to AVOID something unpleasant
When did Skinner do his research?
1938
What was Skinner’s work?
Animal research in labs, using reinforcement & punishment in shaping behaviour
Describe Skinner’s method
- Put a rat at a time in Skinner box (which he made)
- Skinner box contained variety of stimuli (food dispenser which released food when lever was pressed, water, light, loudspeaker and floor which could give electric shocks)
- Hungry rats were placed inside box & time taken for rat to learn that pressing the lever would release food was recorded
Describe Skinner’s findings
- Initially, rats accidentally pressed the lever (by running around box) and received a food pellet (reward)
- Eventually, they learned that pressing lever = food ∴ they pressed the lever repeatedly
- & the more the rat was put into the box = quicker they got at learning where the lever was
Describe Skinner’s conclusion
- Rats learn behaviour through operant conditioning
- Behaviour e.g. pressing lever can be positively reinforced by using food
State a pro of Skinner’s research
Experiment → hugely influential in promoting idea of behavioural psychology
State 2 cons of Skinner’s research
- Experiment used animals ∴ results not generalisable to humans
- Sample size was small = reducing reliability of his results
Give a real-life example of operant conditioning
Eating disorders can be explained via operant conditioning:
- Initially, person goes on diet to lose weight
- They receive positive reinforcement (e.g. compliments from others) & negative reinforcement (e.g. removal of negative comments)
- ∵ person is being reinforced for losing weight → continue to eat less and less = eating disorder
Name a pro of conditioning
- Real life applications
Name 3 cons of conditioning
- Deterministic
- Animal research
- Ethics of animal studies
Evaluating Conditioning: Elaborate the pro - real life applications
Principles of conditions = applicable to real life
- e.g. operant conditioning = basis of token economy systems in prisons and psychiatric wards
- Works by rewarding appropriate behaviour with tokens that can be exchanged for rewards
- Classical conditioning can be used to treat phobias
- (teaching relaxation response in place of fear response = new association with stimulus)
- Effectiveness of this approach only possible if behaviourist approach has validity as explanation for behaviour and learning
Evaluating Conditioning: Elaborate the con - Deterministic
Only focuses on observable behaviour = doesn’t account for free will and cognitive processes
- Classical
- Assumes behaviour always remains same until unlearnt
- Not true since people are known to change behaviour dramatically due to free will
- May be better explained through cognitive explanations = able to link behaviour to prior thoughts
- Undermines behaviourist explanations = don’t account for this
- Operant
- Can’t explain impulsive or spontaneous behaviours
- May not have perceived benefit & so explanation is too simplified and not holistic
- Suggests have no control over our behaviour & act on reinforcement
- Ethical/legal issues = not responsible for actions ∵ no free will
Evaluating Conditioning: Elaborate the con - animal research
- Difficult to generalise findings to human behaviour
- Even though research = animals learn through classical/operant conditioning ≠ conclude that humans also display behaviour
- Animals simpler in thought patterns while humans can think beyond simple scenarios
- Behaviourist explanations don’t account for this
Evaluating Conditioning: Elaborate the con - ethics of animal studies
- Experiments e.g. Skinner’s = exposure to stressful and harmful situations
- = psychological and physical harm to animals
- = caused change in behaviours seen = behaviour not true representation of animal
- = weakens conditioning
What did Wundt intially believe about ALL aspects of human behaviour, but then realised (& how)?
- That it could be investigated via experiments using introspection
- Later realised that learning, language and emotions can’t be studied through lab experiments
- ∵ self-reports = unreliable + difficult to replicate + subjective down to individual
What does the Social Learning Theory look to do?
Looks at the step between the stimulus and response and accounts for some meditational (cognitive) processes
Describe how SLT believes we learn
- SLT suggests we observe role models carrying out a certain behaviour
- We then imitate this behaviour
- More likely to imitate if we identify with model
- Vicarious reinforcement decides whether behaviour is imitated
What is vicarious reinforcement?
When we see someone else being reinforced for their behaviour = motivates us to imitate the behaviour
What are the 4 meditational processes that are used when imitating behaviour?
- Attention
- Retention
- Reproduction
- Motivation
(ARRM)
Describe the meditational process attention
We must notice the behaviour being displayed by the role model
Describe the meditational process retention
We then retain the information (what we observed) in our long term memory
Describe the meditational process reproduction
If we are physically able, we will then demonstrate the observed behaviour
Describe the meditational process motivation
If there is a level of incentive, we will continue to demonstrate this behaviour in the future
When did the research: Bandura, Ross and Ross (imitation of aggressive models) take place?
1961
What was the aim of Bandura’s study?
- Examine the effect of a model on behaviour
- Examine if sex of model influences same-sex and opposite-sex participants to different degrees
Describe the method of Bandura’s study
- 36 girls & 36 boys (aged 3-6), 2 adults (1 female + 1 male) = role of model
- 3 conditions (12 girls and 12 boys in each)
- Condition 1: observed aggressive adult model playing with a Bobo doll
- Condition 2: observed non-aggressive model playing with toys and ignoring Bobo doll
- Condition 3 (control group): no exposure to model
- After 10 minutes: children taken to room with toys but not allowed to play with them (aggression arousal)
- Then went to another room with aggressive toys (e.g. Bobo doll, mallet) & non-aggressive toys (e.g. tea set, crayons)
- Children’s behaviour observed for 20 minutes