Self-Represented Litigants
Researchers are exploring the effect procedural fairness has on various populations. Below are publicly-available articles about the importance of procedural fairness to pro se litigants. 
Between Access to Counsel and Access to Justice: A Psychological Perspective
Tom R. Tyler, 38 Fordham U.L. Journal 474 (2010)
This paper examines the way individuals perceive access to justice under certain circumstances in an effort to "understand the procedural values that matter to people and how they are related to having or not having professional legal representation."