What is Subject-Matter Experts

This research provides the scientific community with an updated and content validated scale to measure foreign language teachers' attention to diversity at Spanish bilingual schools: Foreign Language and Attention to Diversity Scale (FLADS). The content of the scale was validated following a two-stage process: instrument development and judgement by experts. To develop the instrument, the content domain was determined, and items were generated based on literature review. The judgement was conducted, first, by lay experts (potential respondents) in a preliminary pilot test and then by a panel of seven subject-matter experts who evaluated the content validity of the scale, which achieved a CVI of 1, proving its validity. The iterative refinement of the scale, based on statistical outcomes and feedback from experts, resulted in the final scale in the appendix.