Paradoxical effect of triangulation?
Creator:Hornowska, Elżbieta ; Brzezińska, Anna Izabela ; Kaliszewska-Czeremska, Katarzyna ; Appelt, Karolina ; Rawecka, Joanna ; Bujacz, Aleksandra
Publisher:Educational Research Institute
Date: Abstract: Bibliographic citation: Subject and Keywords:convergent validity ; discriminant validity ; inquiry approach ; reliability ; sources of data ; triangulation
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