“…Sparks and Ganschow based the LCDH on L1 reading research conducted by Vellutino and Scanlon (1986), who found that poor L1 readers had difficulty with the structural aspects of the printed word, particularly with the phonological and orthographic aspects, but also with the syntactic aspects. In their research with high school and college students, Sparks and Ganschow found that these ''core'' linguistic abilities also affected FL learning (including reading) (Ganschow, Sparks, Javorsky, Pohlman, & Bishop-Marbury, 1991;Sparks & Ganschow, 1993a).…”