Developmental (CLASSIC) - external influences on children's behavior - BANDURA Flashcards
explain the social learning theory
children learn behavior through observing the behavior of role model in the environment and storing that behavior in memory
explain vicarious reinforcement
if they see the model being rewarded in some way for the behavior they will imitate and reproduce the behavior
aims
demonstrate learning of aggression can occur through observation of an aggressive model and that imitation and learned aggressive behavior can occur when the model is no longer present
investigate the effects of gender on imitation; whether boys are more likely to imitate aggression than girls and whether children are more likely to imitate same sex rather than opposite sex models
4 hypotheses
- children shown aggressive models will show significantly more imitative aggressive acts resembling those of their models than those shown non aggressive models or no model at all
- children shown non aggressive models will show significantly fewer aggressive acts than those shown aggressive models or no model at all
- Boys will show significantly more imitative acts than girls
- Children will imitate aggression modelled by a same sex adult more than modelled by an opposite sex adult
Sample
72 children (36 boys and 36 girls) aged between 37-69 months mean 52 months from Stanford university nursery California USA. Obtained via random samplinh
Design
Lab work experiment using matched participants design
Independent variables
- Behavior of model (aggressive or non aggressive)
- Sex of the model (male or female)
- Sex of the child (boy or girl)
Dependent variables
- Amount of imitative aggression - physical and verbal aggression identical to that of the model
- Amount of partially imitative aggression - similar to that carried out by the model
- Amount of non imitative aggression- aggressive acts not shown by the model
Explain how the children were assigned to the conditions
All matched on pre existing levels of aggression. Experimenter and nursery teacher rated each participants aggression on 4 5 point rating scales. Physical and verbal aggression was measured alongside aggression towards inanimate objects and aggression inhibition. Ratings done independently and then compared to test for inter rater reliability. Strong agreement with correlation 0.89.
Children arranged into triplets and assigned to one of the two model conditions at random and a control group.
phase 1
adult modelling the aggression
taken into a room and sat a table and played with potato prints and picture stickers for 10 minutes
-aggressive model began assembling a tinker toy set but after a minute turned t a 5 foot bobo doll and spent the remainder of the period being physically and verbally aggressive and said things like ‘kick him…pow…sock him on the nose’
-non aggressive model assembled the tinker toys in a quiet subdued manner ignoring the bobo doll
- control group did not participate in phase 1
phase 2 - mild aggression arousal
all children taken individually into another playroom where they were initially allowed to play with some attractive toys but after 2 mins the children were told they could not play with them as they were the very best toys for the other children. This was to arouse mild aggression
phase 3 - testing for imitation of aggression
children were taken individually to a third room which contained both aggressive toys e.g 3 foot high bobo doll, mallet, dart guns, non aggressive toys including tea set, cars, dolls. Observed through a one way mirror by a male model and a second researcher for 20 mins who recorded behavior in 5 second intervals (with inter score reliabilities of 0.9)
observers unaware which condition each child was in
categories for observing
-imitative aggression
-partially imitative aggression
-non imitative aggression
-non aggressive behavior
results aggressive v non aggressive
children in the aggressive condition showed significantly more imitation of physical and verbal aggressive behavior than children in the non aggressive or control conditions (aggression score for male imitative physical aggression having observed male model was 25.4 compared to an aggression score of 1.5 having observed a non aggressive male model)
children in the aggressive condition showed very little aggression although results were not always significantly less than the control group
children in the aggressive condition showed more partial imitation and non imitative aggressive than those in the non aggressive or control conditions (aggression score for female non imitative aggression having observed an aggressive female model was 21.3 compared to an aggression score of 7.2 having observed an non aggressive female model. Results were not always significant though
gender of model
boys imitated male models more than girls for physical and verbal aggression, non imitative aggression and gun play (aggression score for male imitative physical aggression having observed a male model = 25.4. The aggression score for female imitative physical aggression having observed a male model =7.2)
Girls imitated female models more than boys for verbal imitative aggression and non imitative aggression (aggression score for female verbal imitative aggression and non imitative aggression (aggression scores for female verbal imitative aggression having observed a female model =13.7, aggression score for male verbal imitative aggression having observed a female model =4.3
the behavior of the male model exerted greater influence than the female model