Vertaile menetelmiä

	Verkkokysely	Strukturoitu haastattelu
Tieteenala	Kyselytutkimuksen metodologia	Kyselytutkimuksen metodologia
Menetelmäperhe	Process / pipeline	Process / pipeline
Syntyvuosi	Mid-1990s (widespread scholarly adoption ~1995–2000)	1940s–1950s
Kehittäjä	Mick P. Couper, Don A. Dillman (early systematic frameworks)	Survey research tradition; formalized by Campbell, Katona, and Kahn in mid-20th century
Tyyppi	Quantitative / mixed-methods data collection technique	Quantitative / mixed data collection technique
Alkuperäislähde	Couper, M. P. (2000). Web surveys: A review of issues and approaches. Public Opinion Quarterly, 64(4), 464–494.	Fontana, A., & Frey, J. H. (2000). The interview: From structured questions to negotiated text. In N. K. Denzin & Y. S. Lincoln (Eds.), Handbook of Qualitative Research (2nd ed., pp. 645–672). Sage.
Rinnakkaisnimet	web survey, internet survey, e-survey, computer-assisted web interviewing	standardized interview, formal interview, schedule-based interview, fixed-format interview
Liittyvät	6	4
Tiivistelmä	An online survey is a structured data collection instrument hosted on a web platform and completed by respondents via internet-connected devices. It enables large-scale, geographically dispersed data gathering at low cost and with rapid turnaround. Respondents self-administer the questionnaire at their convenience, which reduces interviewer bias and permits automatic data capture. Online surveys are the dominant mode of survey research in social, behavioural, health, and market research today.	A structured interview is a data collection technique in which every participant is asked exactly the same pre-specified questions in the same order, using standardized wording. Because the interview schedule is fixed, responses across participants are directly comparable, enabling quantitative aggregation and statistical analysis. It sits at the most standardized end of the interview continuum, between the self-administered questionnaire and the semi-structured interview.