“…Interest in the study of stuttering with comorbid disorders has recently been increasing (Arndt & Healey, 2001;Blood & Seider, 1981;Briley & Ellis, 2018;Donaher, Healey, & Zobell, 2009;Donaher & Richels, 2012;Druker, Hennessey, Mazzucchelli, & Beilby, 2019;Graham, 2006;Homzie, Lindsay, Simpson, & Hasenstab, 1988;Nippold, 1990;Nippold & Schwarz,1990). In particular, in addition to articulation/phonological and/or language disorders (e.g., Arndt & Healey, 2001;Blood & Seider, 1981;Nippold, 1990), developmental disorders also have been frequently reported (e.g., Briley & Ellis, 2018;Blood, Ridenhour, Qualls, & Hammer, 2003) as comorbid disorders with stuttering.…”