A number of key constructs underpin educational action research. This paper focuses on the concept of "truth" and by doing so hopes to highlight some debate in this area. In reflecting upon what "truth" might mean to those involved in action research, I shall critically evaluate Thorndike's "Law of Effect" and Bruner's "Three Forms of Representation", and explain how these perspectives might help us find "the truth" of an area under study and how they might inform the methodology of research. I shall close by suggesting that teacher-researchers should allow for a constructivist approach in their action research methodology in order to help them in their sense-making process.