Supplementary Materials for: Exploring the Role of Blended ELTeach Training and Institutional Support in Promoting the Professional Confidence of Indonesian NNESTs

This dataset contains materials available as supplementary materials to accompany the study titled "Exploring the Role of Blended ELTeach Training and Institutional Support in Promoting the Professional Confidence of Indonesian NNESTs". These resources support the transparency and reproducibility of the research.Included in this dataset is:🔹 Supplementary Material AEthical Clearance Letter from the National Research and Innovation Agency (BRIN), confirming that the study has passed ethical review and outlining researcher obligations.🔹 Supplementary Material BSelf-Assessment Instrument for ELT Professional Confidence.This document includes a comprehensive rating scale adapted from ELTeach Teacher’s Reference Book, used to assess teachers’ confidence in:Using English for teaching (e.g., classroom management, assessment, feedback)Professional knowledge (e.g., language learning theories, vocabulary, grammar, speaking, listening, reading, writing).🔹 Supplementary Material CInstitutional Support QuestionnaireA Likert-scale survey instrument adapted from Guskey (2000) to assess perceived institutional support for professional development. The 12 items evaluate areas such as:Alignment of development programs with school goalsBudget allocation for trainingCollaboration among faculty and administratorsAvailability of follow-up support and resourcesDistrict-level planning and school-wide culture of improvementThis instrument was used to measure how organizational infrastructure influences teachers’ perceptions of support for their professional growth🔹 Supplementary Material DInterview Guide used in the qualitative portion of the study.Includes:Semi-structured questions exploring teacher experiences with blended ELTeach training and institutional support.Probing prompts and separate question sets for teachers and principals.🔹 Supplementary Material ECodebook and Thematic Framework used in qualitative data analysis.Details include:Major and minor themes related to training impact, principal perceptions, organizational support, and teacher confidence.Intercoder agreement ratings across themes and codes, demonstrating analytical rigorThese supplementary materials provide detailed insight into the coding process and thematic development used in the study.