Final answer:
The statement 'I know I saw the information I need in this document, but now I can't find it.' primarily violates the writing criterion of clarity due to the lack of specific references, causing confusion. Coherence might also be an issue if the document's information isn't logically ordered.
Step-by-step explanation:
The statement 'I know I saw the information I need in this document, but now I can't find it.' most likely violates the criterion of clarity. A lack of clarity in writing means that the language used is not clear enough for readers to understand or find the necessary information. The writer’s failure to clearly organize or refer to specific details could leave readers unable to move seamlessly from section to section or to locate specific content within the text. This example shows a common issue where writers use ambiguous language, such as 'this', without a clear reference, making it difficult for readers to follow.
Coherence is also relevant here, as the information in a document should be well-connected and logically ordered to facilitate understanding. Writing with clear transitions and a focused topic helps maintain coherence, enabling readers to grasp the full scope of the material.