เปรียบเทียบวิธี

	การวิเคราะห์วาทกรรมเชิงวิพากษ์ตามช่วงเวลา	Longitudinal Qualitative Content Analysis
สาขาวิชา	เชิงคุณภาพ	เชิงคุณภาพ
ตระกูล	Process / pipeline	Process / pipeline
ปีกำเนิด	1990s–2000s (CDA foundations ~1989–1992; longitudinal applications consolidated through 2000s)	2000s–2010s
ผู้ริเริ่ม	Norman Fairclough; Ruth Wodak	Philipp Mayring (foundational QCA); longitudinal extension developed across qualitative health and social research traditions
ประเภท	Qualitative longitudinal discourse design	Qualitative analytical method
แหล่งต้นตำรับ	Fairclough, N. (1992). Discourse and Social Change. Polity Press. ISBN: 978-0745612690	Mayring, P. (2000). Qualitative content analysis. Forum: Qualitative Social Research, 1(2), Art. 20.
ชื่อเรียกอื่น	Longitudinal CDA, diachronic critical discourse analysis, longitudinal discourse study, temporal CDA	LQCA, longitudinal QCA, repeated qualitative content analysis, panel qualitative content analysis
ที่เกี่ยวข้อง	6	3
สรุป	Longitudinal Critical Discourse Analysis (LCDA) combines the critical discourse analysis tradition — which examines how language constructs and reproduces power, ideology, and social inequality — with a longitudinal design that collects and compares texts at multiple time points. By tracking discursive change over time, LCDA reveals how ideological representations, social identities, and power relations shift, stabilise, or are contested across different historical or political periods.	Longitudinal qualitative content analysis (LQCA) applies systematic content analysis to text data gathered from the same participants, settings, or documents at two or more points in time. The method preserves the interpretive rigour of qualitative content analysis while adding an explicit temporal dimension, enabling researchers to track how meanings, experiences, categories, or discourse shift, deepen, or stabilise across time rather than producing a single-point-in-time description.