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Table 3 Mean Cronbach’s alpha calculated from 50 random samples of size N from each of the BWS and Likert conditions. Higher values of alpha indicate increased reliability for the face-level scores in that condition. BWS best-worst scaling

From: Best-worst scaling improves measurement of first impressions

N

BWS

Likert

8

0.822

0.778

12

0.893

0.827

20

0.924

0.901

30

0.951

0.931

40

0.962

0.948

50

0.970

0.958

122

0.988

0.983