validity and reliability of questionnaire

Pathological conditions of the ankle and foot results from therapeutic interventions are under evaluation by healthcare professionals and researchers using self-reported outcome instruments. One in every five middle-aged person presents foot and ankle pain, and this may compromise locomotion, impairment of balance and a limitation in functional activities of daily living (Thomas et al.

2007 Hale and Hertel 2005 Hunt and Hurwit 2013 Kirkley and Griffin 2003 Shultz et al. Thus, conventional evaluations such as strength and range of motion are being added through valid measurements that can determine functional, social and emotional characteristics (Eechaute et al. However, due to the impact caused by these disorders on the state of health and quality of life, healthcare professionals are increasingly giving emphasis to analyses from the patients’ perspective. The Brazilian-Portuguese version of the FFI questionnaire was found to be a valid and reliable instrument for foot function evaluation, and can be used both in scientific settings and in clinical practice.Įvaluating musculoskeletal disorders is essential in order to determine physical impairments among individuals. No ceiling and floor effect were detected. The MDC was 2.42 (90 % confidence interval). The SEMs for inter and intra-evaluator reliability were 1.32 and 1.08, respectively. The Brazilian-Portuguese version of FFI showed excellent intra and interevaluator correlations, with an ICC range of 0.99–0.97 and score reliability that was considered highly satisfactory, with Cronbach’s alpha range of 0.80–0.61. The validity process showed that there were correlations between FFI and the “pain” and “social aspects” subscales of SF-36 and all subscales of FAOS, except for “other symptoms”. The scores were used to assess the standard error measurement (SEM), minimal detectable change (MDC) and ceiling floor and effects. The inter and intra-evaluator reliability was ascertained by means of the intraclass correlation coefficient (ICC) and the internal consistency by means of Cronbach’s alpha coefficient. The correlation between FFI, SF-36 and FAOS was done using the Pearson’s linear coefficient. The FFI validity process used the Short Form-36 (SF-36) and Foot and Ankle Outcome Score (FAOS) questionnaires. The validity and reliability of the FFI were tested in 50 volunteers, with plantar fasciitis, metatarsalgia and chronic ankle sprain. To evaluate the validity and reliability of the Foot Function Index (FFI) in its Brazilian Portuguese version.

Validity and reliability of questionnaire