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Table 3 Internal consistency and discriminatory power of the Brazilian-version Kidscreen 27 instrument (n = 816)

From: Psychometric analysis of the Brazilian-version Kidscreen-27 questionnaire

HRQoL dimension Internal Consistency % Floor % Ceiling Discrimination power
Alpha Ômega
Physical Well-being 0.82 0.84 0.5 2.7 0.97 (0.96–0.97)
Psychological Well-being 0.88 0.91 0.3 5.0 0.98 (0.97–0.98)
Autonomy and Parent relation 0.77 0.84 0.1 3.0 0.97 (0.96–0.97)
Social Support and Peers 0.78 0.84 0.1 16.0 0.94 (0.93–0.94)
School environment 0.76 0.82 0.1 4.2 0.95 (0.94–0.95)