4.5 stars!
This is Not a Test is an apocalyptic story in the head of 11th grader, Sloane Price. Almost at the very beginning you meet all six of the main characters and learn of their personalities quickly. Each character is very different from the rest and it all provides a Lord of the Flies-like aspect to the story since they find shelter within their high school. The main character, Sloane, thinks very differently than the rest of the group because of her past. Even though I don't have the same experiences as her I found myself understanding everything she did and thought. Being inside her head is the best way this story could of been written because it's easier to understand why she is the way she is - what the other five teenagers have trouble grasping.
This is the first apocalyptic book I've read and now not only do I want to read more, but I want to read more of Summers' books. I was hooked the whole way through this story and hardly put it down.
Why haven't I rated it five stars? I really enjoyed it, but I didn't find enough character development. While there are things in a few of the teenagers that develop (and quite a big one in Sloane) there wasn't enough there for me. So, four point five stars for This is Not a Test.
I'd highly recommend this book for contemporary to sci-fi lovers because it has so many aspects of both. I think anyone could enjoy this book.

Sometimes a book is even better the second time.
5/5 stars for my reread of Divergent
here's my trilogy review (no spoilers in the first half)

Great sequel!
After all the information given to you in the first book I did find this book a bit drawn out at times. I also found the scene a bit jumpy at one point. But obviously Clare does that so you'll keep reading and wanting to know what happens next. Which I did.
For some reason I found myself wishing that Valentine turned out to be a good guy; probably cause i'd love to see Jace, Clary and Valentine all working as a family... but obviously that's not going to happen. Valentine is obviously evil.
I would've also love to seen Clary and Jace's relationship develop a bit more. And that doesn't really happen until the end. Obviously they're struggling to gain a brother-sister dynamic and it's difficult because they love each other in a romantic way. Am I the only one that wants to see them work out as brother and sister and not romantically? Because I think it's a little strange...
Other then that I loved that Clare brought in Isabel and Alec's parents and little brother. I think they added something interesting to the whole story.
As for the twist of the book - a little heart breaking but not as shocking to me as finding out Clary and Jace were siblings.
Also; I've fallen in love with Luke's character.
Something else that kept me reading was the constant talk about how Valentine had done something special to Jace and Clary and by the end (and in the middle) you find out about Clary but not quite Jace and so I'm still a little confused.
Overall; I still enjoyed the first book a little more but I think this one gives you a lot more to think about and had great action! I'll give it an A-/B+