A user-study measuring the effects of lexical simplification and coherence enhancement on perceived and actual text difficulty.
A user-study measuring the effects of lexical simplification and coherence enhancement on perceived and actual text difficulty.
复制标题
DOI：
10.1016/j.ijmedinf.2013.03.001
复制
发表时间：
2013-08
影响因子：
4.9
通讯作者：
Mouradi O
中科院分区：
文献类型：
--
作者：
Leroy G;Kauchak D;Mouradi O
病人健康知识水平低与医药费用增加有关，因为它导致护理不足。提供解释性文本是分发医疗信息和提高健康素养的一种方便方法。不幸的是，编写易于理解的文本是具有挑战性的。本文测试了两个文本特征对理解的影响：词汇简化和连贯增强。用户研究进行测试的功能对感知和实际的文本难度的影响。个别句子被用来测试感知难度。使用5分制的李克特量表，参与者比较了8对原始和简化的句子。摘要被用来测试实际难度。对于每一个摘要，创建了四个版本：原始，词汇简化，连贯性增强，词汇简化和连贯性增强。使用混合设计，一组参与者使用原始和词汇简化的文档（没有连贯性增强），而第二组使用连贯性增强的版本。实际难度采用完形填空和多项选择题来衡量。使用亚马逊的Mechanical Turk，有200人参与，其中187人通过了我们的数据资格测试。句子评分的配对样本t检验显示词汇简化后难度显著降低（p < .001）。实际难度的结果基于摘要和相关任务。完形填空测试的双向方差分析表明，连贯性增强没有效果，但词汇简化的主要影响，与简化导致更差的成绩（p = 0.004）。后续的方差分析表明，这种影响只存在于功能词时，连贯性没有增强（p = 0.008）。相比之下，回答多项选择题的双向方差分析显示，连贯性增强（p = 0.003），但没有词汇简化的效果显着的有益效果。词汇简化降低了文本的感知难度。连贯性增强降低了文本的实际难度时，使用多项选择题进行测量。然而，完形填空测试的结果表明，词汇简化会对语篇的流畅性产生负面影响。
Low patient health literacy has been associated with cost increases in medicine because it contributes to inadequate care. Providing explanatory text is a convenient approach to distribute medical information and increase health literacy. Unfortunately, writing text that is easily understood is challenging. This work tests two text features for their impact on understanding: lexical simplification and coherence enhancement. A user study was conducted to test the features’ effect on perceived and actual text difficulty. Individual sentences were used to test perceived difficulty. Using a 5-point Likert scale, participants compared eight pairs of original and simplified sentences. Abstracts were used to test actual difficulty. For each abstract, four versions were created: original, lexically simplified, coherence enhanced, and lexically simplified and coherence enhanced. Using a mixed design, one group of participants worked with the original and lexically simplified documents (no coherence enhancement) while a second group worked with the coherence enhanced versions. Actual difficulty was measured using a Cloze measure and multiple-choice questions. Using Amazon’s Mechanical Turk, 200 people participated of which 187 qualified based on our data qualification tests. A paired-samples t-test for the sentence ratings showed a significant reduction in difficulty after lexical simplification (p < .001). Results for actual difficulty are based on the abstracts and associated tasks. A two-way ANOVA for the Cloze test showed no effect of coherence enhancement but a main effect for lexical simplification, with the simplification leading to worse scores (p = .004). A follow-up ANOVA showed this effect exists only for function words when coherence was not enhanced (p = .008). In contrast, a two-way ANOVA for answering multiple-choice questions showed a significant beneficial effect of coherence enhancement (p = .003) but no effect of lexical simplification. Lexical simplification reduced the perceived difficulty of texts. Coherence enhancement reduced the actual difficulty of text when measured using multiple-choice questions. However, the Cloze measure results showed that lexical simplification can negatively impact the flow of the text.
登录
查看更多内容
影响因子：
5
作者：
COHEN, S;KAMARCK, T;MERMELSTEIN, R
通讯作者：
MERMELSTEIN, R
影响因子：
5.7
作者：
Gazmararian, Julie A.;Kripalani, Sunil;Rask, Kimberly
通讯作者：
Rask, Kimberly
影响因子：
5.9
作者：
Friedman, Daniela B.;Corwin, Sara J.;Rose, India D.
通讯作者：
Rose, India D.
影响因子：
--
作者：
Kirkpatrick, MAE
通讯作者：
Kirkpatrick, MAE
DOI：
10.1016/j.ijmedinf.2010.02.002
发表时间：
2010-06-01
影响因子：
4.9
作者：
Leroy, Gondy;Helmreich, Stephen;Cowie, James R.
通讯作者：
Cowie, James R.