手法を比較

	比較記述研究	記述的研究
分野	研究デザイン	研究デザイン
系統	Process / pipeline	Process / pipeline
提唱年	Mid-20th century, formalized in research methods texts from the 1960s onward	Late 19th century; formalized in social/behavioral sciences ~1960s–1980s
提唱者	Codified in educational and behavioral research methods literature; no single originator	Francis Galton, Karl Pearson (early empirical tradition); formalized in social science by Fred Kerlinger
種類	Non-experimental quantitative research design	Non-experimental quantitative research design
原典	Fraenkel, J. R., Wallen, N. E., & Hyun, H. H. (2012). How to Design and Evaluate Research in Education (8th ed.). McGraw-Hill. ISBN: 978-0078097874	Creswell, J. W. (2014). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (4th ed.). Sage. ISBN: 978-1452226101
別名	comparative survey design, descriptive comparative study, group-comparison descriptive research, CDR	descriptive study, descriptive survey design, observational descriptive research, non-experimental descriptive research
関連	3	3
概要	Comparative descriptive research is a non-experimental quantitative design that systematically documents characteristics, attitudes, behaviors, or conditions across two or more naturally occurring groups, then places those descriptions side by side to identify similarities and differences. Unlike causal-comparative designs, it makes no claim about why groups differ — it rigorously answers the question 'How do these groups compare on this characteristic?' without manipulating any variable.	Descriptive research is a non-experimental quantitative design that systematically documents the characteristics, frequencies, or distributions of variables in a defined population at a given point in time. It answers 'what is' questions — who, what, when, where, and how much — without manipulating variables or drawing causal conclusions. It is one of the most widely used research designs across the social, behavioral, health, and education sciences.