手法を比較

	複数事例に基づくオーラルヒストリー ― 事例間証言研究	比較オーラルヒストリー
分野	質的手法	質的手法
系統	Process / pipeline	Process / pipeline
提唱年	1970s–1990s (convergence of oral history and case study traditions)	1970s–1990s (oral history discipline; comparative application developed through 1990s)
提唱者	Alessandro Portelli (oral history theory); Robert K. Yin (multiple case logic)	Alessandro Portelli, Paul Thompson (oral history tradition); comparative design adapted from cross-cultural qualitative research
種類	Qualitative multi-case research design	Qualitative comparative research design
原典	Portelli, A. (1997). The Battle of Valle Giulia: Oral History and the Art of Dialogue. University of Wisconsin Press. ISBN: 978-0299153045	Portelli, A. (1991). The Death of Luigi Trastulli and Other Stories: Form and Meaning in Oral History. State University of New York Press. ISBN: 978-0791404997
別名	multi-case oral history, comparative oral history, cross-case oral history, multi-site oral history	comparative oral history, cross-group oral history, comparative oral testimony, multi-site oral history
関連	6	6
概要	Multiple case-based oral history is a qualitative research design that embeds oral history interviews within a multiple-case framework. Rather than collecting testimonies from a single community or site, the researcher deliberately selects two or more distinct cases — communities, cohorts, organisations, or geographic sites — gathers in-depth oral testimonies within each, and then conducts systematic cross-case comparison to identify both shared and divergent historical experiences.	Comparative oral history collects and systematically compares first-person spoken testimonies from two or more distinct groups, communities, or historical contexts. The method blends the interpretive depth of oral history — privileging personal memory and narrative — with the analytical logic of comparative design, enabling researchers to identify both shared patterns and meaningful differences across the groups under study.