William T. Barndt
September 2005
Princeton University
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Please do not cite or circulate without author permission.
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countries with similar means are statistically indistinguishable, there is nonetheless significant
variation in the sample. For example, it can be concluded with ninety percent confidence that more
assaults occur in Peru and Ecuador than in Brazil; that more assaults occur in Colombia and
Venezuela than in Bolivia; and that more assaults occur in Brazil and Argentina than Uruguay.
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Chile is the only country in which no assaults have occurred.
Table 3: Executive Assaults in Civilian-Ruled South America
Country
Period Analyzed
Mean Assaults
per Year
% Years with
Assaults
All
216 CCY
.519
35.6%
Peru 1980-2004
(25 CCY)
1.08 56.0%
Ecuador 1979-2004
(26 CCY)
.769 57.7%
Colombia 1979-2004
(26 CCY)
.731 50.0%
Venezuela 1979-2004
(26 CCY)
.692 46.1%
Brazil 1985-2004
(20 CCY)
.400 35.0%
Argentina
1983-2004
(21 CCY)
.381 33.3%
Paraguay 1991-2004
(14 CCY)
.286 14.2%
Bolivia 1982-2004
(23 CCY)
.261 21.7%
Uruguay 1985-2004
(20 CCY)
.100 10.0%
Chile 1990-2004
(15 CCY)
.000 0.00%
Source: Executive Assault Dataset, Version 2.3 (CCY = Civilian-Ruled Country-Year)
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Concluded using group-mean comparison tests.