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	Design-Based Research (DBR)	Lektionsstudie
Ämnesområde	Fältmetoder	Fältmetoder
Familj	Process / pipeline	Process / pipeline
Ursprungsår	1992	Late 19th century Japan; international dissemination from 1999
Upphovsperson	Ann L. Brown and Allan Collins (independently, 1992)	Japanese elementary school teachers (formalized); introduced to Western research by James Stigler & James Hiebert
Typ	Interventionist qualitative-quantitative mixed methodology	Collaborative practitioner inquiry / professional development research
Ursprungskälla	Brown, A. L. (1992). Design experiments: Theoretical and methodological challenges in creating complex interventions in classroom settings. Journal of the Learning Sciences, 2(2), 141–178.	Stigler, J. W., & Hiebert, J. (1999). The Teaching Gap: Best Ideas from the World's Teachers for Improving Education in the Classroom. Free Press. ISBN: 978-0684852744
Alias	DBR, design research, design experiment, educational design research	Jugyou Kenkyuu, LS, collaborative lesson research, teaching study
Närliggande	6	5
Sammanfattning	Design-based research (DBR) is an iterative, interventionist methodology that simultaneously designs educational interventions and builds theory about how and why those interventions work in authentic, complex settings. Originating in Ann Brown's 1992 classroom experiments and Allan Collins's parallel work, DBR treats the learning environment as both the object of study and the site of theory generation, cycling through design, enactment, analysis, and redesign until both practical improvement and theoretical insight are achieved.	Lesson study is a structured, cyclical form of professional development and educational research in which a team of teachers collaboratively plans a single 'research lesson,' observes it live in a classroom, analyzes student learning in detail, revises the lesson, and shares findings with the broader teaching community. Originating in Japanese elementary schools and brought to international attention by Stigler and Hiebert's 1999 comparative study, it has become one of the most widely adopted teacher-led inquiry methods worldwide.