“…Vocabulary training studies, however, have reported variable effects between vocabulary and comprehension. Many studies have shown that vocabulary training impacts comprehension (e.g., Beck, Perfetti, & McKeown, 1982;Kameenui, Carnine, & Freschi, 1982;Stahl, 1983;Stahl & Fairbanks, 1986), whereas others have not found such effects (e.g., Pany & Jenkins, 1978;Tuinman & Brady, 1974;Wixson, 1986).…”