Validade de conteúdo nos processos de construção e adaptação de instrumentos de medidas

Abstract

This study sought to conduct a review of content validity, which is an important phase of processes of construction and adaptation of measurement instruments. Research of comprehensive literature was conducted by means of a review of national and international databases. Initially, a description of the conceptual basis and the measurement methods used in content validity was made, with emphasis on its application in the healthcare area. It was seen that controversy exists in the literature on the terminology and concept of content validity. The recommended procedures used to check content validity during the construction and adaptation processes of instruments were described, especially the judges' assessment, which can involve qualitative and quantitative procedures. The number, selection and qualification of these judges were also described. The different methods used to quantify the level of agreement among the experts were verified, mainly the Content Validity Index (CVI). This study described aspects of the content validity process, one of the procedures to be considered by healthcare researchers and professionals who are interested in using reliable and appropriate measurements and instruments scales for given population groups.

Cross-cultural adaptation of the Sport Anxiety Scale-2 (SAS-2) for the Brazilian context

“…[14][15][16] The suggestions given by the experts were rigorously analyzed, and they were fundamental for the refinement of the Brazilian version of SAS-2.…”

“…14,15 Analyses were performed on an independent basis and documented on an evaluation form developed for the present study. The experts were instructed to score each item according to the following scale: -1 = not equivalent; 0 = not possible to evaluate/don't know; and +1 = equivalent.…”

“…Indices ≥ 80 percent were considered satisfactory. 15 In the end of this process, the authors prepared a consensus version. …”

Cultural adaptation to Brazil and psychometric performance of the “Evidence-Based Practice Questionnaire”

“…(18) Was considered satisfactory an index of agreement equal to or above 90%. (19) Thus, through the evaluation of the judges committee it is possible to verify the content validity of the questionnaire.…”

Development and validating an educational booklet for childbirth companions

“…The CVI measured the concordance between the scores given by the members of the panel of specialists for a given item (16) . The literature recommends a cutoff point of at least 0.78 when material is evaluated by over six specialists, which was the case in this study (17) .…”