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. 2019 Sep 11;14(9):e0221617. doi: 10.1371/journal.pone.0221617

Table 2. Reliability of the FWI.

US SGP
alpha 95% CI alpha 95% CI
FWI        
free will 0.81 0.79–0.83 0.79 0.77–0.81
determinism 0.85 0.84–0.87 0.81 0.79–0.83
dualism 0.82 0.80–0.84 0.78 0.76–0.80

Cronbach’s alpha coefficient for all sub-scales reported. Includes 95% confidence intervals (CI). FWI = free will inventory, US = United States, SGP = Singapore.