The current study examined the potential language and literacy factors that best explain the L2 reading comprehension abilities of Korean EFL learners. A total of 70 intermediate-level Korean high school students participated in this study and were tested on L1 and L2 reading comprehension, L2 vocabulary, and L2 syntactic knowledge. The findings indicated that, between L1 reading skills and L2 proficiency, L2 proficiency played a more crucial role in predicting L2 reading comprehension. Throughout the analyses, the linguistic threshold hypothesis was supported, demonstrating a threshold level of language proficiency above which learners can effectively transfer their L1 reading skills to L2 reading comprehension. These results highlight the important pedagogical implications for the critical role of L2 proficiency and show the threshold level of proficiency necessary for Korean EFL learners. The insights gained from this study are expected to provide targeted instructional strategies and recommendations, aimed at effectively supporting EFL learners with diverse skills and abilities.

Most useful statistical techniques in six sigma DMAIC are hypothesis testing and interval estimation. So this paper reviews and derives sample size formula by considering significance level, power of detectability and effect difference. The quality practioners can effectively interpret the practical and statistical significance with the rational sample sizing.

This study examined processing of L2 English relative clauses by testing the Filler-Gap Hypothesis (Hawkins, 1999; O"Grady 1997). For that goal, we partially replicated Diessel and Tomasello (2004), who examined L1 acquisition of relative clauses by English-and German-speaking children. The Filler-Gap Hypothesis states that the structural distance between head and gap determines the processing difficulty pertained within relative clauses. Taking this hypothesis as a theoretical starting-point, we used an elicited imitation task to tap 48 L2 learners" knowledge of English relative clauses. The results of the study demonstrated that subject relatives retained greater accuracy scores than object relatives, which in turn retained greater accuracy scores than indirect object and oblique relatives. These results were largely consistent with the predictions made by the FGH, but only partially consistent with Diessel and Tomasello"s L1 data.