“…Although the CCTT is purported to measure several neuropsychological domains, including attention and cognitive flexibility, little is known about its factorial validity when employed with clinical samples. Therefore, despite the fact that surveys conducted over the last three decades in several continents indicate that trail-making tests continue to be one of the most widely used measures of neuropsychological assessment (Bassa & Schlebusch, 1984;Butler, Retzlaff, & Vanderploeg, 1991;Rabin, Barr, & Burton, 2005;Tsoi & Sundberg, 1989), and the increased worldwide attention and usage of the CCTT (Baron, 2004;Mok et al, 2008;Strauss, Sherman, & Spreen, 2006), few studies have investigated its psychometric properties with clinical, pediatric populations (cf. Strauss et al, 2006).…”