Σύγκριση μεθόδων

	Έρευνα με Διασχολικές Έρευνες	Έρευνα με Δείγμα
Πεδίο	Ερευνητικός Σχεδιασμός	Ερευνητικός Σχεδιασμός
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	1930s–1950s (formalized with large-scale opinion and health surveys)	Late 19th century; methodologically systematised 1940s–1960s
Δημιουργός	Established through the social survey tradition (Bowley, Gallup, and others in the early-to-mid 20th century)	Francis Galton, Charles Booth, and early social statisticians; systematised by Paul Lazarsfeld and colleagues at Columbia in the 1940s
Τύπος	Quantitative non-experimental design	Quantitative (and mixed) non-experimental design
Θεμελιώδης πηγή	Fowler, F. J. (2009). Survey Research Methods (4th ed.). Sage Publications. ISBN: 978-1412958929	Fowler, F. J. (2014). Survey Research Methods (5th ed.). Sage Publications. ISBN: 978-1452259000
Εναλλακτικές ονομασίες	cross-sectional survey, single-occasion survey, prevalence survey design, snapshot survey	survey methodology, questionnaire research, survey design, survey study
Συναφείς	4	4
Σύνοψη	Cross-sectional survey research administers a structured questionnaire or interview to a representative sample of a population at one point in time. It is the workhorse design for estimating prevalence, describing group characteristics, and mapping associations among variables across a wide range of disciplines — from public health and education to marketing and political science.	Survey research is a quantitative (and sometimes mixed-methods) design in which a researcher collects standardised self-report data from a sample drawn from a defined population, using a questionnaire or structured interview. It is the dominant non-experimental strategy for describing population characteristics, estimating prevalence, mapping attitude distributions, and testing bivariate or multivariate associations across social, behavioural, and health sciences.