Which of the following is not a factor which affects your ability to read and understand any material?
visual skill
extent of vocabulary
purpose for reading
length of written work
familiarity with material or past experience

The option that is not a factor which affects your ability to read and understand any material is familiarity with material or past experience.

Explanation:

The reader doesn't need to have previous contact or experience related to the topic of the reading material, that does not affect either the ability to read or to understand it, as long as the reader comprehends the vocabulary and purpose of the material and does not have any physical or mental impediment to process it.

- "when these words are put together to convey a meaning it is known as a sentence. a sentence is a group of words that makes complete sense. placing of words in a sentence is very important. the second sentence is a question."