Derived analysis data and supplementary materials for "Deriving Conversation-Analytic Design Requirements for AI-Assisted Communication Support in English-Mediated Social Media Interaction"

This record contains derived and de-identified analytical materials supporting a collection-based conversation analysis of English-mediated public social-media interaction. The study screened 240 interaction episodes from Lemmy, TikTok, and a 2017 Twitter/X institutional-support subset and retained 199 episodes across five overlapping screening domains. Thirty-eight focal episodes supported ten cross-case relational-pragmatic patterns, thirty evidence-to-design links, twelve sequence-sensitive design requirements, and ten human-centred safeguards. The deposit contains corpus summaries, analytic definitions, non-verbatim focal-case evidence, an evidence-to-design link matrix, operational specifications, safeguards, and a data dictionary. It excludes usernames, handles, source URLs, post/comment/video identifiers, precise timestamps, raw audiovisual files, and full searchable transcripts.