Instruments used to collect the information

To determine the participants' agreement in relation to the analysis items, an adaptation of the SAM instrument was used, which consists of a list or checklist with six categories (content, text comprehension, illustration, presentation, motivation and cultural adaptation). The result of adding up the points assigned to each item of the instrument categorizes the material as to its adequacy for application (13). The instrument was adapted, presenting three categories (content, language and presentation), not using the graphic illustrations, stimulation/motivation and cultural adequacy categories, as shown in Table 2.

To score the items, a five-point Likert scale (ranging from 0, strongly disagree to 4, strongly agree) was used. The Likert scale has shown sufficient advantages for measuring attitudes and is widely used for performance evaluation in variety of domains (17). The assessment instrument was organized in the Google Forms app, and the results were extracted to a spreadsheet in Microsoft Excel.