Reaction to Aggression and the Defense Mechanism Inventory

Samuel Juni, Joseph Masling

Research output: Contribution to journalArticlepeer-review


The ability of the Defense Mechanism Inventory (DMI) to predict the expression of aggression was evaluated by subjecting 34 male students to an unfair, unpleasant attack for coming late to an experiment. A baseline for each subject had been established in a prior, neutral session where attitudes toward psychological experiments and experimenters had been assessed. The differences in attitudes from the first session to that in which the subject had been the victim of aggression were significantly related to four of the five DMI clusters, as was the observed level of the subject's hostility. A composite DMI score, computed by a linear resolution of the clusters into an acting-out continuum, is suggested as a more comprehensive predictor of the reaction to aggression.

Original languageEnglish (US)
Pages (from-to)484-486
Number of pages3
JournalJournal of Personality Assessment
Issue number5
StatePublished - Oct 1980

ASJC Scopus subject areas

  • Clinical Psychology
  • Psychiatry and Mental health
  • Health, Toxicology and Mutagenesis


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