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| Delphi-tekniikka× | Kysely× | |
|---|---|---|
| Tieteenala | Kyselytutkimuksen metodologia | Kyselytutkimuksen metodologia |
| Menetelmäperhe | Process / pipeline | Process / pipeline |
| Syntyvuosi≠ | 1950s–1963 | Late 19th century; systematic social-science use from 1940s |
| Kehittäjä≠ | Norman Dalkey and Olaf Helmer (RAND Corporation) | Francis Galton, Charles Booth, and early social statisticians; formalised by Paul Lazarsfeld in the 1940s |
| Tyyppi≠ | Iterative expert consensus technique | Quantitative (primarily) or mixed-methods data-collection instrument |
| Alkuperäislähde≠ | Dalkey, N., & Helmer, O. (1963). An experimental application of the Delphi method to the use of experts. Management Science, 9(3), 458–467. DOI ↗ | Dillman, D. A., Smyth, J. D., & Christian, L. M. (2014). Internet, Phone, Mail, and Mixed-Mode Surveys: The Tailored Design Method (4th ed.). Wiley. ISBN: 978-1118456149 |
| Rinnakkaisnimet | Delphi method, Delphi survey, expert consensus method, iterative expert panel | questionnaire survey, survey research, self-report survey, questionnaire study |
| Liittyvät | 6 | 6 |
| Tiivistelmä≠ | The Delphi technique is a structured, multi-round data collection method that harvests and refines expert opinion through iterative questionnaires and controlled feedback. Developed at RAND Corporation in the 1950s, it is designed to converge a dispersed expert panel toward a reliable consensus on complex, uncertain, or future-oriented questions — without the conformity pressures of face-to-face group discussion. | A survey is a systematic data-collection method in which a standardised set of questions is posed to a sample of respondents to measure attitudes, behaviours, demographics, or other constructs. Surveys can be administered via paper, telephone, online platforms, or face-to-face. They are among the most widely used instruments in social, behavioural, health, and educational research because they can reach large, geographically dispersed samples at relatively low cost. |
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