Voices of Migration Psychographic Questionnaire — Research Instrument and Content-Validation Materials

This supplementary material presents the Voices of Migration questionnaire, a narrative-based psychographic instrument designed to explore the experiences, identity, perceived inclusion, and future aspirations of adult migrants in intercultural and socio-educational contexts. It includes the original and content-validated versions of the questionnaire, the item-to-dimension mapping, the profiles of the expert panel, and an audit trail documenting the revisions made during the content validation process. Organised into five dimensions and composed primarily of open-ended biographical prompts, the instrument was validated through a mixed panel of academic and situated-knowledge experts using content validity indices (CVR/CVI) and qualitative thematic analysis. It is made available to support future research and practice with migrant populations.