The document discusses factors that affect the difficulty of reading test items and texts. It examines the language used in questions, the types of questions asked, and use of dictionaries. Regarding texts, it notes that background knowledge and content, as well as text length, impact difficulty. Question types discussed include textually explicit, implicit, and script-based. Textually explicit questions have the answer in the same sentence as the question, while implicit questions require combining information across sentences. Script-based questions require background knowledge as the answer cannot be found in the text.