Conformance Tests as Checking Experiments for Partial Nondeterministic FSM

2006 ◽  
pp. 118-133 ◽  
Author(s):  
Alexandre Petrenko ◽  
Nina Yevtushenko
Keyword(s):  
Checking Experiments

The global effectiveness of fact-checking: Evidence from simultaneous experiments in Argentina, Nigeria, South Africa, and the United Kingdom

2021 ◽  
Vol 118 (37) ◽  
pp. e2104235118 ◽  
Author(s):  
Ethan Porter ◽  
Thomas J. Wood
Keyword(s):  
South Africa ◽  
United Kingdom ◽  
Health Outcomes ◽  
False Beliefs ◽  
Point Scale ◽  
Analytic Procedure ◽  
The United Kingdom ◽  
Fact Checking ◽  
Checking Experiments

The spread of misinformation is a global phenomenon, with implications for elections, state-sanctioned violence, and health outcomes. Yet, even though scholars have investigated the capacity of fact-checking to reduce belief in misinformation, little evidence exists on the global effectiveness of this approach. We describe fact-checking experiments conducted simultaneously in Argentina, Nigeria, South Africa, and the United Kingdom, in which we studied whether fact-checking can durably reduce belief in misinformation. In total, we evaluated 22 fact-checks, including two that were tested in all four countries. Fact-checking reduced belief in misinformation, with most effects still apparent more than 2 wk later. A meta-analytic procedure indicates that fact-checks reduced belief in misinformation by at least 0.59 points on a 5-point scale. Exposure to misinformation, however, only increased false beliefs by less than 0.07 points on the same scale. Across continents, fact-checks reduce belief in misinformation, often durably so.

Comments on "Checking Experiments for Sequential Machines"

1975 ◽  
Vol C-24 (11) ◽  
pp. 1141-1142
Author(s):  
Y. Wakimura ◽  
N. Yoshida
Keyword(s):  
Sequential Machines ◽  
Checking Experiments
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