Σύγκριση μεθόδων

	Τεχνική Delphi με Τριγωνοποίηση	Συνεντευξιακή Δομή Τριγωνισμού
Πεδίο	Μεθοδολογία Επισκοπήσεων	Μεθοδολογία Επισκοπήσεων
Οικογένεια	Process / pipeline	Process / pipeline
Έτος προέλευσης	Delphi: 1963; triangulation integration: 1970s–1990s	1978 (Denzin's triangulation framework); structured interviews in use from early 20th century
Δημιουργός	Norman Dalkey & Olaf Helmer (Delphi); triangulation principle from Norman Denzin	Norman K. Denzin (triangulation framework); structured interview tradition predates
Τύπος	Expert-consensus data collection with multi-method validation	Triangulated quantitative/qualitative data collection technique
Θεμελιώδης πηγή	Dalkey, N., & Helmer, O. (1963). An experimental application of the Delphi method to the use of experts. Management Science, 9(3), 458–467.	Denzin, N. K. (1978). The Research Act: A Theoretical Introduction to Sociological Methods (2nd ed.). McGraw-Hill.
Εναλλακτικές ονομασίες	Delphi with triangulation, mixed-method Delphi, multi-method Delphi, triangulation-enhanced Delphi	triangulated standardized interview, multi-source structured interview, cross-validated structured interview
Συναφείς	5	3
Σύνοψη	The Triangulated Delphi Technique combines the structured expert-consensus process of the classic Delphi method with deliberate triangulation — integrating data from at least one additional source or method (e.g., systematic literature review, interviews, survey data) to cross-validate findings and enhance the credibility of expert judgments. It retains the iterative, anonymous, multi-round panel format while embedding verification steps that reduce reliance on panel consensus alone.	A triangulated structured interview applies the triangulation principle — using multiple independent sources, methods, or perspectives to cross-validate findings — to the structured interview format. The researcher administers the same fixed set of questions across different respondent groups, time points, or complementary data sources, then systematically compares the results to confirm, qualify, or explain discrepancies. This strengthens confidence in the accuracy of the data beyond what any single structured interview session could provide.