In Gregg Schraw’s (2009) chapter, Measuring Metacognitive Judgments, he artfully provides a taxonomy of calibration measures that attempt to assesses metacognitive judgment of learning. For more information, follow the hyperlink below.

Schraw, G. (2009). Measuring Metacognitive Judgments. In D. J. Hacker, J. Dunlosky, &  A. C. Graesser (Eds.). Handbook of metacognition in education, 415.