مقایسهٔ روش‌ها

	تحقیقات توصیفی مبتنی بر پنل	پژوهش پانل
حوزه	طراحی پژوهش	طراحی پژوهش
خانواده	Process / pipeline	Process / pipeline
سال پیدایش	1940s–1960s	1970s-1980s (econometric formalization); earlier social survey use from 1940s
پدیدآور	Developed within survey methodology and social science panel traditions (Lazarsfeld, Kish, and others)	Social science and econometric traditions; systematized by Cheng Hsiao and others from the 1970s-1980s
نوع	Quantitative observational research design	Quantitative longitudinal observational design
منبع بنیادین	Menard, S. (2002). Longitudinal Research (2nd ed.). Sage Publications. ISBN: 978-0761922827	Hsiao, C. (2003). Analysis of Panel Data (2nd ed.). Cambridge University Press. ISBN: 978-0521522717
نام‌های دیگر	descriptive panel study, panel survey descriptive design, repeated cross-sectional descriptive panel, panel descriptive research	panel study, panel survey, longitudinal panel, repeated-measures panel
مرتبط	4	3
خلاصه	Panel-based descriptive research follows the same set of individuals, households, or organizations across multiple time points and uses that repeated-measures structure to describe how variables, distributions, and patterns change over time — without imposing an experimental manipulation or testing causal hypotheses. It is distinguished from cross-sectional descriptive research by its capacity to document intra-individual change, and from explanatory panel research by its goal of accurate description rather than causal modelling.	Panel research is a quantitative longitudinal design in which the same individuals, organizations, or other units are measured repeatedly across two or more time points. Unlike cross-sectional surveys that capture a single snapshot, a panel tracks change within units, enabling researchers to separate genuine within-unit change from between-unit differences and to model causal dynamics over time.