This book is motivation 101. In plain terms it helps the reader to understand the factors contributing to intrinsic and extrinsic motivation. This small book is a “good read.”
This pdf file provides a list of research-based articles that provide a deeper understanding of the construct of self-regulation or persistence.
Available at: University of Rochester Psychology Department Web Site.
Very few personality inventories measure persistence directly. However, persistence is measured as a subscale on other inventories. For example, there is a persistent subscale as part of the Self-Control Scale (Tangney, Baumeister, & Boone).