Total word count 单词总数
Number of different words 不同单词的数量
Ratio of different words to total words 不同单词数量占比
Number of high frequency words 高频词数量
Ratio of high frequency words to total words 高频词占比
Number of low frequency words 低频词数量
Ratio of low frequency words to total words 低频词占比
Sentence length 句子长度
Sentence complexity 句子复杂程度
Predictability of text 文本的可预测性
Text structure and organization文章组织结构
·Logical nature of organization 组织逻辑性
·Text and feature distractions 文字和特性的干扰度
·Labeling and reader supports 标注和解释情况
Illustration support 文字配图情况
Infographics 信息图表
·Complexity 文本复杂程度
·Text reliance on 文本依赖程度
Knowledge demands 所需背景知识
·Concept load 概念介绍情况
·Familiarity of topic 话题内容是否常见
·Single vs. multi-themed 单一或多元主题
·Intertextual dependence 语际依赖度