American Journal of Psychology, 105, 165–180. doi:10.2307/1423026 Andringa, S., & Rebuschat, P. (Eds.). (2015). New directions in the study of implicit and explicit learning. [Special issue]. Studies in Second Language Acquisition, 37. Bates, D., Maechler, M., Bolker, B., & Walker, S. (2015). lme4: Linear mixed-effects models using Eigen and S4. [R package version 1.1-9]. Retrieved from https://cran.r-project.org/package=lme4 Bialystok, E. (1978). A theoretical model of second language learning. Language Learning, 28, 69–83. Dekeyser, R. (2003). Implicit and Explicit Learning. In C. J. Doughty & M. H. Long (Eds.), The handbook of second language acquisition (pp. 313– 348). Blackwell Publishing. Dienes, Z. (2007). Subjective measures of unconscious knowledge. Progress in Brain Research, 168, 49–64. doi: 10.1016/S0079-6123(07)68005-4 Ellis, R. (2004). The definition and measurement of L2 explicit knowledge. Language Learning, 54, 227–275. doi:10.2307/145776 Ellis, R. (2005). Measuring Implicit and explicit knowledge of a second language: A psychometric study. Studies in Second Language Acquisition, 27, 141–172. doi:10.1017/S0272263105050096 Erlam, R. (2006). Elicited imitation as a measure of L2 implicit knowledge: An empirical validation study. Applied Linguistics, 27, 464–491. doi: 10.1093/applin/aml001 Godfroid, A., Loewen, S., Jung, S., Park, J.-H., Gass, S., & Ellis, R. (2015). Timed and untimed grammaticality judgments measure distinct types of knowledge. Studies in Second Language Acquisition, 37, 269–297. doi:10.1017/S0272263114000850 Granena, G. (2013). Individual differences in sequence learning ability and second language acquisition in early childhood and adulthood. Language Learning, 63, 665–703. doi:10.1111/lang.12018 Hulstijn, J. H., & Ellis, R. (Eds.). (2005). Implicit and explicit second language learning. [Special issue]. Studies in Second Language Acquisition, 27. Jiang, N. (2007). Selective integration of linguistic knowledge in adult second language learning. Language Learning, 57(1), 1–33. doi:10.1111/j. 1467-9922.2007.00397.x ಽɾޱ༐࡞ (2015) ʮจ๏ੑஅͷ֬৴ͱ໌ࣔత͓Αͼ҉ࣔతࣝʯʰத෦۠ӳޠڭҭֶձلཁʱ 44, 65–72. Kusanagi, K., & Yamashita, J. (2013). Influences of linguistics factors on the acquisition and explicit and implicit knowledge: Focusing on agreement type and morphosyntactic regularity in English plural morpheme. Annual Review of English Language Education in Japan, 24, 205–220. Linck, J. A., & Cunnings, I. (2015). The utility and application of mixed-effects models in second language research. Language Learning, 65, 185– 207. doi:10.1111/lang.12117 Loewen, S. (2009). Grammaticality judgment tests and the measurement of implicit and explicit L2 knowledge. In R. Ellis, S. Loewen, C. Elder, R. Erlam, J. Philp, & H. Reinders (Eds.), Implicit and explicit knowledge in second language learning (pp. 94–112). Bristol, UK: Multilingual Matters. R Core Team (2014). R: A language and environment for statistical computing. R Foundation for Statistical Computing, Vienna, Austria. Retrieved from http://www.R-project.org/ Suzuki, Y., & DeKeyser, R. (2015). Comparing Elicited Imitation and Word Monitoring as Measures of Implicit Knowledge. Language Learning, 65, 860–895. doi:10.1111/lang.12138 Tamura, Y., Harada, Y., Kato, D., Hara, K., & Kusanagi, K. (in press). Unconscious but slowly activated grammatical knowledge of Japanese EFL learners: A case of tough movement. Annual Review of English Language Education in Japan, 27. Tamura, Y., & Kusanagi, K. (2015). Asymmetirical representation in Japanese EFL learners’ implicit and explicit knowledge about the countability of common/material nouns. Annual Review of English Language Education in Japan, 26, 253–268. Vafaee, P., Kachisnke, I., & Suzuki, Y. (2016). Validating grammaticality judgment tests: Evidence from two new psycholinguistic measures. Studies in Second Language Acquisition. Advance Online Publication. doi;10.1017/S0272263115000455 References 49