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An experimental analysis of aggression.

B A Marcus1, T R Vollmer, V Swanson

  • 1Louisiana State University, USA. drbmarcus@erols.com

Behavior Modification
|April 25, 2001
PubMed
Summary

This study assessed aggression in children with developmental disabilities using functional analysis. Results show aggression often serves operant functions, like gaining attention or escaping demands.

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Area of Science:

  • Behavioral Psychology
  • Developmental Disabilities
  • Child and Adolescent Psychiatry

Background:

  • Self-injurious behavior assessment methods exist.
  • Aggression in developmental disabilities lacks comprehensive functional analysis.
  • Operant behavior principles are relevant to aggression.

Purpose of the Study:

  • To assess operant functions of aggression in children and adolescents with developmental disabilities.
  • To apply an analog functional analysis method to aggression.
  • To identify reinforcement contingencies maintaining aggressive behavior.

Main Methods:

  • Utilized an assessment method adapted from Iwata et al.
  • Employed analog functional analysis with conditions: attention, escape, materials, no interaction, and control.
  • Included eight children and adolescents with developmental disabilities.

Main Results:

  • Identified clear operant functions for aggression in 7 out of 8 participants.
  • Aggression was maintained by positive or negative reinforcement.
  • One participant's aggression may be reinforced by peer attention.

Conclusions:

  • Functional analysis effectively identifies operant functions of aggression in this population.
  • Understanding reinforcement is key to intervening in aggressive behavior.
  • Further research on peer attention as a reinforcer for aggression is warranted.

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