bandura (aggression) Flashcards
results regarding complete imitation of behaviour
- aggressive condition: good resemblance in physical and verbal aggression, control and nonaggressive group no imitative behaviour
70% in both other groups had 0 scores, friedman 2 way analysis to obtain significance of these differences - prediction that exposure to aggressive models increases aggression confirmed.
- comparison of pairs shows that differences almost entirely due to exposure to aggressive models
- aggressive group (about one third) children imitated veral aggression which other 2 groups did not
data for imitative physical aggression
and verbal aggression
imitative physical aggression in
aggressive group
female s, female m 5.5
v-13.7
male s female m 12.4
v-4.3
female s male s 7.2
v-2.0
male s male m 25.8
12.7
non aggressive group
female s female m 2.5
0.3
male s female m 0.2
1.1
female s male m 0
0
male s male m 1.5
0
control f 1.2 m 2.0
v-f 0.7 m 1.7
results on partial imitation of models behaviour
- in mallet aggression(other than on bobo doll), treatment conditions showed statistical difference
mallet aggression
aggressive group
female s female m 17.2
male s female m 15.5
female s male m 18.7
male s male m 28.8
non aggressive group
female s female m 0.5
male s female s 18.7
female s male m 0.5
male s male m 6.7
control f 13.1
m 13.5
- individual sign tests show that aggressive and control showed more aggression than non aggressive group especially in females
- although aggressive condition performed more mallet aggression than control, difference not statistically different
results in non imitative aggression
- analysis of variance shows that treatment condition did not affect extent of gun play , or bobo punching
however treatment condition significant in nonimitative verbal and physical aggression in aggressive and non aggressive groups
aggressive gun play
aggressive group
female s female m 1.8
male s female m 7.3
female s male m 4.5
male s male m 15.9
no aggressive
female s female m 2.6
male s female m 8.9
female s male m 2.5
male s male m 16.7
control f 3.7
control m 14.3
non imitative aggression
aggressive group
non aggressive group
female s female m 7.2
male s female m 1.4
female s male m 26.1
male s male m 22.3
control f 6.1
control m 24.6
influence of sex of sample and sex of model results
- hypothesis that boys that show more aggression than girls partially confirmed
aggressive group boys showed more imitative physical aggression butgirls and boys showed similar imitative verbal aggression - subjects in aggressive condition show the possibility of sexXmodel interaction more. more consistent and pronounced in male model than female model
male subjects showed more physical, verbal, non imitative, mallet and gun aggression following exposure to male model than female subjects
in contrast female subjects showed more imitative verbal aggression and more non imitative aggression that boys - non aggressive and control provide further evidence that male model has greater influence that female model on subjects behaviour
- except for greater aggression in mallet aggression in control than non aggressive no significant differences
subjects exposed to female model did now show any aggression different than male model
but male model has striking differences
males in non aggressive group performed less imitative aggression verbal and physical
lesser mallet, non imitative and, less likely to punch bobo than control
- although subgroup result non statistically relevant could be chance still supports interpretations in terms of influence by the model
non aggressive behaviour results
- with the exception of expected sex differences non aggressive scores yielded few significant differences
- females played more with boys than dolls, tea set, cooking
boys more devoted to exploratory play with guns - subjects in non aggressive engaged more in non aggressive doll play than with subjects in control or aggressive
- subjects in non aggressive condition spent twice the time not engaging with materials at all and simply sitting quietly
psychology being investigated
social learning theory
proposes that people choose to imitate behaviour of other people, especially those they admire, they may be powerful attractive or popular, initially an individual pays close attention to behaviour, retains it in their memory, and reproduces it.
social learning can be observational or vicarious
delayed imitation is when behaviour is reproduced at a later point in time.
aggression: verbal or physical behaviour where there is intention to harm either a person or an object, it is usually forceful or hostile
aims
- to investigate whether children imitate aggression of models when models are not present
- to investigate if children imitate same sex model more than opposite sex model
hypotheses 4
- children exposed to aggressive models would reproduce aggressive behaviour is the absence of the model, and in this aspect they would differ from the 2 other groups
- exposure to subdued non aggressive models would have a generalised inhibiting effect on the subsequent behaviour this would differ from no model condition where the latter would show more aggression
- subjects would be expected to imitate same sex model more than opposite sex
- boys are more predisposed to aggression than girls, difference most marked for boys with male aggressive models
sample
36 boys and 36 girls, 72 children from stanford university nursery
37 to 69 months mean age 52
two models, male and female
research methodology
independent measures design and matched participants in triplets
why was arousal of aggression required
- because aggression exhibited by others reduces tends to reduce probability of aggression in observer
consequently subjects in aggressive condition would be under weaker instigation - if subjects in non aggressive condition showed little aggression presence of inhibitory process would be indicated
procedure part 1
subjects brought individually into room, seated in the corner, model invited in, experimenter demonstrated potato print an sticker usage multicolour stickers to be pasted on pastoral scene- high interest activity for children
experimenter on opposite corner had a small table and chair, a tinker toy set, a mallet, and a 5 foot inflated bobo doll
in non aggressive condition, model quietly ignored bobo doll and worked on assembling tinker toys
aggressive condition
after a minute of assembling tinker toys, model showed aggression to bobo doll
describe aggressive acts of model
(punching is likely to performed naturally and it cannot be said is imitated, model performed distinct acts to count as imitative aggression.
san on bobo doll side and punched its nose, struck its head with a mallet
tossed in the air, kicked about in the room
verbal aggression- sock him in the nose, hit him down, throw him in the air, kick him, pow
non aggressive verbal-he sure is a tough fella, he keeps coming back for more
how were children matched
students rated on 5 point scale measuring physical aggression, verbal aggression, aggression towards inanimate objects and aggressive inhibition
rated by children’s teachers and and experimenter independently, on a correlational study it scored 0.89 showing high inter rater reliability
subjects matched on similar aggression levels and randomly assigned into 2 groups and control