手法を比較

	探索的量的研究	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 (codified in social research methods texts c. 1950s–1970s)	Late 19th century; formalized in social/behavioral sciences ~1960s–1980s
提唱者	Earl Babbie; John Creswell (systematic codification in social science methods)	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	Babbie, E. (2021). The Practice of Social Research (15th ed.). Cengage Learning. ISBN: 978-0357360767	Creswell, J. W. (2014). Research Design: Qualitative, Quantitative, and Mixed Methods Approaches (4th ed.). Sage. ISBN: 978-1452226101
別名	quantitative exploratory design, exploratory survey research, initial quantitative investigation, preliminary quantitative study	descriptive study, descriptive survey design, observational descriptive research, non-experimental descriptive research
関連	4	3
概要	Exploratory quantitative research is a non-experimental design used when a phenomenon is insufficiently understood to support formal hypothesis testing. The researcher collects numerical data — typically through surveys, structured observation, or existing records — to describe distributions, detect patterns, and generate hypotheses that more targeted confirmatory studies can subsequently test. It occupies the first stage of a cumulative quantitative research programme.	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.