Objectives Research was planned to test the Turkish validity and reliability of “Pediatric Quality of Life Inventory 3.0 Cancer Module (PedsQL 3.0 Cancer Module)” in children who were diagnosed with cancer ages 8–12 years.
Methods The scope of the research was the registered children who were diagnosed with cancer ages 8–12 and their parents in two different university hospitals in Istanbul, Turkey. The sample were 146 children and their parents who were suitable for the eligibility criteria as follows: ages 8–12, willing to participate in the research, not having old cancer story, came to hospital for routine clinic appointment, not hospitalized during the data collection. The measure was translated into Turkish and then translated back into English, and pilot tested to linguistic equivalence. Cronbach’s alpha was calculated for the reliability and asked for the opinions of 30 experts for the content validity. After then according to the recommendations measure was rearranged. Permission was given from the ethics committee and hospitals in which the research was done. Data were analyzed using SPSS (Statistical Package for Social Sciences) version 11.5.
Results Cronbach’s alpha was 0.91 for children and 0.92 for parents in the English version and 0.85 for children and 0.87 for parents in the Turkish version; also factor analysis was calculated. Measure variance was found to be 77.04%.
Conclusions This measure had good validity and reliability, and can be used to assess the quality of life in Turkish children diagnosed with cancer ages 8–12.