Systemic Conditions of Political Aggression (SCOPA) Project, 1955-1964 (ICPSR 5207)

Published: Feb 16, 1992

Principal Investigator(s):
Ivo Feierabend; Rosalind Feierabend; Betty Nesvold

Version V1

This study contains data on 35,000 worldwide domestic conflict events in the period 1955-1964. The events fall under two broad categories: (1) turmoil initiated by members of the general populace and directed either against the government or against other persons or groups within the society, and (2) coercion and conciliation initiated by officeholders and directed toward other members or branches of the government. A subset of events in both categories is designated as minority group tensions. Variables include the legal status of the nation, type of event, type of group, issues involved, event's location, duration of event, number of participants, amount of violence, number of people arrested, injured, or killed, and the level of repressive force. A summary scale was developed to indicate the intensity of the event.

Feierabend, Ivo, Feierabend, Rosalind, and Nesvold, Betty. Systemic Conditions of Political Aggression (SCOPA) Project, 1955-1964. Ann Arbor, MI: Inter-university Consortium for Political and Social Research [distributor], 1992-02-16.

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1955 -- 1964

A total of about 35,000 political events worldwide in the period 1955-1964.


event/transaction data

survey data



1984-05-03 ICPSR data undergo a confidentiality review and are altered when necessary to limit the risk of disclosure. ICPSR also routinely creates ready-to-go data files along with setups in the major statistical software formats as well as standard codebooks to accompany the data. In addition to these procedures, ICPSR performed the following processing steps for this data collection:

  • Performed consistency checks.


  • Data in this collection are available only to users at ICPSR member institutions.

  • The citation of this study may have changed due to the new version control system that has been implemented.
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