Kelsey is a research assistant in drug treatment studies. her professor said they are using a double-blind procedure to minimize the chance that is/are responsible for differences between experimental and control conditions.

well, i can't read it so i'll ask you questions about it : )

if you were a reader and you read the introduction, would you want to read more?

does it start with a question? if so, is it something you would want to read about?

and ask any friends or family for their opinion : )

answer; you can turn right on a red signal (when posted);