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Table 5 Internal consistency reliability: Cronbach's alpha coefficient on the Brazilian and original versions of the PedsQL™ Family Impact Module for total, in-patient and out-patient samples

From: The Pediatric Quality of Life Inventory™ (PedsQL™) family impact module: reliability and validity of the Brazilian version

   Cronbach's α coefficient
Scale Items a Total sample In-patient sample Out-patient sample
Total Impact Score     
Brazilian version 36 0.89 0.86 0.89
Original Version 36 0.97 0.97 0.95
Parent HRQOL Summary Score     
Brazilian version 20 0.83 0.78 0.83
Original Version 20 0.96 0.96 0.95
Family Summary Score     
Brazilian version 8 0.73 0.76 0.70
Original Version 8 0.90 0.93 0.89