The links among theory, teaching practice, and evidence of student learning have increasingly gained traction in the public discourse in much of the Western world, as educational policy makers seek to bring together accountability demands with the push for improvements in student learning. This article draws on the notion of teaching and assessment as generations informed by diverse theoretical viewpoints. The article pursues three goals. First, it identifies distinct elements of social cognitive theory and the concept of triadic reciprocality in relation to the concepts of student agency and reciprocity between teachers and students' in-classroom assessment as a learning process. Secondly, the article outlines the transformation of assessment practice over three generations of pedagogical theory. Thirdly, it argues that social cognitive theory offers a recalibrated understanding of assessment as a student-centred learning process.