Data_Sheet_1_Development of the Japanese Version of the Linguistic Inquiry and Word Count Dictionary 2015.docx

The Linguistic Inquiry and Word Count Dictionary 2015 (LIWC2015) is a standard text analysis dictionary that quantifies the linguistic and psychometric properties of English words. A Japanese version of the LIWC2015 dictionary (J-LIWC2015) has been expected in the fields of natural language processing and cross-cultural research. This study aims to create the J-LIWC2015 through systematic investigations of the original dictionary and Japanese corpora. The entire LIWC2015 dictionary was initially subjected to human and machine translation into Japanese. After verifying the frequency of use of the words in large corpora, frequent words and phrases that are unique to Japanese were added to the dictionary, followed by recategorization by psychologists. The updated dictionary indicated good internal consistency, semantic equivalence with the original LIWC2015 dictionary, and good construct validity in each category. The evidence suggests that the J-LIWC2015 dictionary is a powerful research tool in computational social science to scrutinize the psychological processes behind Japanese texts and promote standardized cross-cultural investigations in combination with LIWC dictionaries in different languages.

语言查询与词数统计词典2015（Linguistic Inquiry and Word Count Dictionary 2015，LIWC2015）是一款用于量化英语词汇语言学特征与心理测量属性的标准化文本分析词典。在自然语言处理与跨文化研究领域，学界长期以来亟需LIWC2015词典的日语版本（J-LIWC2015）。本研究通过对原始词典与日语语料库的系统性调研，旨在开发J-LIWC2015日语版本词典。研究首先通过人工与机器翻译将完整的LIWC2015词典转换为日语；在验证大型语料库中词汇的使用频率后，将日语独有的高频词汇与短语补充至词典中，随后由心理学研究者完成分类体系的重新校准。经更新后的词典展现出良好的内部一致性，与原始LIWC2015词典具备语义等效性，且各分类维度均具有良好的结构效度。上述研究证据表明，J-LIWC2015词典是计算社会科学领域的高效研究工具，可用于深入剖析日语文本背后的心理过程，并结合不同语言版本的LIWC词典推动标准化跨文化研究的开展。