Written Word Boundaries and Lexical-Semantic Judgments of Indonesian Compounds: A Complementary-List Study and Corpus Audit

Supplementary Materials: Written Word Boundaries and Lexical-Semantic Judgments of Indonesian Compounds This supplementary document accompanies a research article submitted to Cogent Arts & Humanities. It provides additional methodological documentation, experimental stimuli, item-level results, and robustness analyses for an investigation of orthographic word boundaries and lexical-semantic judgments of Indonesian compounds. The document includes detailed exploratory results from Study 1 (N = 117), documentation of the complementary-list design used in Study 2 (N = 170), orthographic stimulus lists, and analyses of familiarity, perceived commonness, semantic transparency, and spelling naturalness. It also presents an orthographic codification audit based on EYD V, a post-hoc frequency analysis of 24 orthographic pairs using the Leipzig Indonesian News Corpus 2024 (1,000,000 sentences), and exploratory sensitivity analyses. Additional sections document the internal-modification task, statistical specifications, participant composition, and response-category distributions. This deposit contains the supplementary document only. Individual participant responses, executable analysis code, and the full Leipzig corpus are not included.