Go to http://www.prenhall.com/agsite  and click on "students". You will see a button on the top bar entitled "study skills" if you enter this portion of the site, (or click the button labeled McCarty Study Questions) you can choose your discipline, in this case, horticulture. Then choose your book, which would be McCarty. Each chapter has 10 questions that students can use as self-quizzes. At the end of the chapter you will get a score to tell you how well you did. If you want, you can then retake the quiz or move onto another chapter. The scores are not reported anywhere, this is for student use only. These questions were written by the author of the text.