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Academic Paper |
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| Title: | Establishing Evidence of Learning in Experiments Employing Artificial Linguistic Systems |
| Author: | Phillip Hamrick |
| Author: | Rebecca Sachs |
| Linguistic Field: | Computational Linguistics; Language Acquisition |
| Abstract: | Artificial linguistic systems (ALSs) offer many potential benefits for second language acquisition (SLA) research. Nonetheless, their use in experiments with posttest-only designs can give rise to internal validity problems depending on the baseline that is employed to establish evidence of learning. Researchers in this area often compare experimental groups’ performance against (a) statistical chance, (b) untrained control groups’ performance, and/or (c) trained control groups’ performance. However, each of these methods can involve unwarranted tacit assumptions, limitations, and challenges from a variety of sources (e.g., preexisting perceptual biases, participants’ fabrication of rules, knowledge gained during the test), any of which might produce systematic response patterns that overlap with the linguistic target even in the absence of learning during training. After illustrating these challenges, we offer some brief recommendations regarding how triangulation and more sophisticated statistical approaches may help researchers to draw more appropriate conclusions going forward. |
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This article appears IN Studies in Second Language Acquisition Vol. 40, Issue 1, which you can READ on Cambridge's site . View the full article for free in the current issue ofCambridge Extra Magazine! |
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