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Table 2 Initial model: correlations for items and persons, and extreme scores

From: Rasch analysis of consumer attitudes towards the mountain product label

Indicator LA PI MA MFA
Minimum correlation for items 0.74 0.73 0.68 0.79
% Of persons with correlation ≤ 0.20 38% 31% 24% 42%
% Of persons with extreme scores 11% 15% 12% 23%