infoactive/data-design — pull request #29 by Bonifacio2 (2014-09-22 16:44:58+00:00)
Title: fixed typos

In chapter four:
- The example of Likert Scale had two "good" options. I replaced one of them with "very good" so the final scale is now "excellent, very good, good, fair, poor".
- In the middle of the Pretest section there was a "this this". I removed one of them.