Empirical Translation Studies have recently extended the scope of research to other forms of constrained and mediated communication, including bilingual communication, editing, and intralingual translation. Despite the diversity of factors accounted for so far, this new strand of research is yet to take the leap into intermodal comparisons. In this paper we look at Lexical Diversity (LD), which under different guises, has been studied both within Translation Studies (TS) and Second Language Acquisition (SLA). LD refers to the rate of word repetition, and vocabulary size and depth, and previous research indicates that translated and non-native language tends to be less lexically diverse. There is, however, no study that would investigate both varieties within a unified methodological framework. The study reported here looks at LD in spoken and written modes of constrained and non-constrained language. In a two-step analysis involving Exploratory Factor Analysis and linear mixed-effects regression models we find interpretations to be least lexically diverse and written non-constrained texts to be most diverse. Speeches delivered impromptu are less diverse than those read out loud and the non-constrained texts are more sensitive to such delivery-related differences than the constrained ones.

中文翻译：

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约束语言中词汇多样性的多元方法

实证翻译研究最近将研究范围扩展到其他形式的受限和中介交流，包括双语交流、编辑和语内翻译。尽管到目前为止考虑的因素多种多样，但这一新的研究方向尚未跨越多式联运比较。在本文中，我们着眼于词汇多样性 (LD)，它以不同的形式在翻译研究 (TS) 和第二语言习得 (SLA) 中进行了研究。LD 指的是单词重复率、词汇量和深度，之前的研究表明，翻译语言和非母语语言的词汇多样性往往较少。然而，没有研究会在统一的方法框架内调查这两个品种。这里报告的研究着眼于受约束和不受约束的语言的口语和书面模式中的 LD。在涉及探索性因素分析和线性混合效应回归模型的两步分析中，我们发现解释在词汇上的多样性最少，而书面无约束文本的多样性最多。即兴发表的演讲不如大声朗读的演讲多样化，并且不受约束的文本比受约束的文本对这种与交付相关的差异更敏感。