The participation of children and young people in home, school and community activities is an indicator of well-being and health. However, children and young people with disabilities have fewer opportunities to participate in these activities compared to subjects without disabilities. The environment can influence participation, making it essential to identify barriers and facilitators. Faced with this need, the PEM-CY (Participation and Environment Measure for Children and Youth) and the YC-PEM (Participation and Environment Measure - Young Children) evaluate the participation and environment of children and young people from 0 to 5 years old (YC-PEM) and from 5 to 17 years old (PEM-CY), in the perception of their caregivers. Both instruments were translated and adapted to Brazilian Portuguese. However, the multiplicity of calculations related to the scores can hinder the clinical and scientific use of the tool, a factor that motivated the development of a calculator that allows the automatic computation of results.

To report the process of development and finalization of the calculators for the scoring of the instruments YC-PEM and PEM-CY Brasil.

This is a methodological study on the development process of calculators for the YC-PEM and PEM-CY Brasil instruments. A physical educator with experience in programming, and three physiotherapists and an occupational therapist, all three being university professors, participated. The team's discussions took place in several meetings on the Google Meet platform. For the development of the calculator, the Excel program was used.

The calculators maintain the visual identity of the original instruments, and fully present the questions and answer options of the Brazilian version. Multiple choice answers are directed to an Excel spreadsheet, which stores the results of a group of subjects and allows statistical analyses. Open-ended responses allow a qualitative analysis of the aspects that help with participation. The calculators also generate individual charts and graphs that allow users to visualize participation and environmental factors related to the three sections. The greatest difficulty in this process involved the understanding of each score, for proper programming in the spreadsheet, being necessary to consult the authors of the original version to establish a consensus, which enabled a deeper understanding of the instrument.

The YC-PEM and PEM-CY Brasil calculators allow the remote evaluation of individuals, as well as the archiving and calculation of the results, generating spreadsheets that facilitate data analyses, and graphs and tables that allow the translation of knowledge for professionals and family members. It is expected, therefore, that it will favor the clinical and scientific use of the instruments for assessing participation and the environment in Brazilian children and young people and, consequently, to stimulate rehabilitation actions aimed at these aspects.

In order to strengthen evidence-based practices, it is essential that standardized instruments are available in the Brazilian context. Furthermore, strategies must be created to facilitate the use of these instruments. On the other hand, the context of the pandemic reinforced the need for tools that can be applied remotely. The creation of the calculator has collaborated for the validation of the YC-PEM and PEM-CY Brasil in a broader context.