arXiv:2410.18326cs.CL2024-10被引 7

通过模拟实验评估两种行为范式对个体语义网络的测量效果。

Measuring individual semantic networks: A simulation study

  • 用模拟方法检验自由联想与相关性判断任务的测量性能。
  • 中等数量线索和回应时,结果更准确且可推广。
  • 提醒研究者注意不同范式间比较的误导性。

准确捕捉语义记忆中个体差异的语义网络,是深化其机制理解的基础。以往基于行为范式的个体语义网络构建可能受限于数据质量。为评估这些局限并提出改进方案,我们开展了一项恢复模拟研究,考察两种行为范式——自由联想与相关性判断任务——在估计个体语义网络时的心理测量特性。结果表明,虽然语义网络推断可行,但绝对网络特征估计存在严重偏差,导致不同范式或设计配置间的比较通常无意义。然而,在同一范式和设计下,采用中等数量的线索、中等数量的回应,以及包含多样化词汇的线索集时,比较结果仍可准确且具有泛化性。本研究为评估以往关于语义网络结构的研究提供了新视角,并指导未来研究设计以更可靠地揭示个体差异。

原文摘要 · Abstract (English)

Accurately capturing individual differences in semantic networks is fundamental to advancing our mechanistic understanding of semantic memory. Past empirical attempts to construct individual-level semantic networks from behavioral paradigms may be limited by data constraints. To assess these limitations and propose improved designs for the measurement of individual semantic networks, we conducted a recovery simulation investigating the psychometric properties underlying estimates of individual semantic networks obtained from two different behavioral paradigms: free associations and relatedness judgment tasks. Our results show that successful inference of semantic networks is achievable, but they also highlight critical challenges. Estimates of absolute network characteristics are severely biased, such that comparisons between behavioral paradigms and different design configurations are often not meaningful. However, comparisons within a given paradigm and design configuration can be accurate and generalizable when based on designs with moderate numbers of cues, moderate numbers of responses, and cue sets including diverse words. Ultimately, our results provide insights that help evaluate past findings on the structure of semantic networks and design new studies capable of more reliably revealing individual differences in semantic networks.

语义网络个体差异行为实验模拟研究

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