questions on the reading

1) How does having an author's name entitled on a book affect its sales?

2) If you were given a book to read without an author(s) name included, would it prevent you from purchasing that book? Why or why not? What if you were given a book review that rated the book a 9/10, would it change your actions or thoughts? Would you be able to tell how many authors of the book? If so, how?

3). In the reading the authors depict that scientists are likely to fail if they fail to argue or squabble when they do research. Wouldn't scientists support their meaning/experiment/results/etc. based on their research? So why would they have to argue? Would you trust a scientist and his experiment if he squabbled?