“…Several studies that have used the error detection task to measure implicit language processing have only emphasized effects of type frequency and not token frequency, acknowledging that the detection of errors that violate high-frequency morphosyntactic patterns should be faster and more accurate than errors violating a more infrequent pattern (e.g., Blackwell, Bates, & Fisher, 1996; Kail, Kihlstedt, & Bonnet, 2012). Many speeded error detection studies within this framework do not discuss the possible effects of token frequency, however, even when low-frequency words are included in the materials (see, e.g., Kail et al, 2012). In terms of error detection accuracy, several studies have found that school-age children perform close to ceiling across different types of errors, which could be due to the error type choices, or reflect that the tasks were primarily designed to capture difficulties in children with DLD (Miller et al, 2008; Montgomery & Leonard, 1998; Purdy, Leonard, Weber-Fox, & Kaganovich, 2014; Wulfeck, Bates, Krupa-Wiatkowski, & Saltzman, 2004).…”