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Insurgent: Divergent, Book 2
More product info From Veronica Roth

Amazon Reviews for  Insurgent: Divergent, Book 2
Rating:
14,436 Ratings
44,491 Reviews
("Ratings" vs. "Reviews")
0% of potentially unnatural reviews removed (why?)
Adjusted:
33,133 Reviews




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Report Info:
Last Updated: Jul 18, 2020
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Note: While Amazon.com claims 14,436 Ratings, we counted 44,491 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

Warn Overall Grade
FAIL Brand Repeats
FAIL Word Count Comparison
FAIL Phrase Repetition
WARN Deleted Reviews
WARN Rating Trend
WARN Suspicious Reviewers
WARN Reviewer Participation
PASS Unverified Purchases
PASS Overlapping Review History
PASS Reviewer Ease
PASS Incentivized Reviews

Most Trusted Reviews

This book was really well written and I appreciate the ... [Go to full review]
Jun 3, 2013      
58% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (1 deleted Review; avg. rating: 4.0)
  • Brand Repeater (2 of 5 reviews for this brand; avg rating: 4.5)
  • Overrepresented Participation (posted 5 Reviews)
  • Easy Grader (avg. rating: 4.3)


Least Trusted Reviews

5/5
it's great to read on a day of boredom it ... [Go to full review]
Sep 26, 2014      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (23 words)
  • Contains repetitive phrases (show)
  • Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
  • Brand Loyalist (3 of 5 reviews for this brand; avg rating: 4.7)
  • Overrepresented Participation (posted 5 Reviews)
  • Easy Grader (avg. rating: 4.7)


Analysis Details

Fail Brand Repeats

Brand Repeaters


11,907 of the 44,491 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Repeaters

from Non-Repeaters


4.6
4.5


Brand Loyalists


1,796 of the 44,491 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.

from Brand Loyalists

from Non-Loyalists


4.7
4.5


Read more about our Brand Repeats test.

Fail Word Count Comparison

  • 34%
  • Have an overrepresented word count

In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 15,008 reviews (or 34%) are within an overrepresented word count group. These reviews have rated this product an average of 4.7, while all other reviews have rated this product an average of 4.4. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.7
4.4


Read more about our Word Count Comparison test.

Fail Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.

Common Phrases in Reviews:
1733 reviews
(4.9/5)
1674 reviews
(4.9/5)
4205 reviews
(4.4/5)
977 reviews
(4.9/5)
1054 reviews
(4.9/5)
655 reviews
(4.6/5)
551 reviews
(4.4/5)
1061 reviews
(3.9/5)
796 reviews
(4.9/5)
494 reviews
(4.4/5)
Show MoreShow Less
Common Phrases in Titles:
842 reviews
(4.2/5)


5,273 of the 44,491 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.8 while reviews without substantial repetitive phrases rated this product an average of 4.5. Based on our statistical modeling, the discrepancy in average rating between these two groups is significant enough to believe that the difference is not due to random chance, and may indicate that there are unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.8
4.5


Read more about our Phrase Repetition test.

Warn Deleted Reviews

We discovered a total of 744 deleted Reviews for this product, with an average rating of 4.5. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.

There are a few limitations to keep in mind regarding the Deleted Reviews test:
  1. We don't have a magic ability to collect every single deleted review; we can only identify reviews as deleted if we collect them on one date and then notice they are no longer visible on a subsequent date.
  2. We have no information on reviews that were never published in the first place.
  3. We also don't know why these reviews were removed. It could be action from the platform, personal decision by the review author, part of an entire account closure, even some data error on our part, etc.
Read more about our Deleted Reviews test.

4.5 average rating of deleted reviews

4.5


Show distribution of deleted reviews

Warn Rating Trend

  • 68%
  • Created over 479 days

We counted 44,491 reviews for this product over the span of 3,380 days, an average of 13.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 27 or fewer reviews on any given day.

However, we see the following 479 days exceeding this threshold:In total, we found that 30,256 reviews were created on just 479 days. This is an excessively high number of reviews submitted on these high volume days.

from reviews created on high volume days

from reviews created on normal volume days


4.5
4.6


Read more about our Rating Trend test.

Warn Suspicious Reviewers

Take-Back Reviewers


12,279 of the 44,491 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from take-back reviewers

from reviewers without previously deleted reviews


4.4
4.5


Read more about our Suspicious Reviewers test.

Warn Reviewer Participation

  • 34%
  • From reviewers with an overrepresented participation

We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 15154 reviewers (or 34%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, the discrepancy in ratings between reviewers in an overrepresented participation groups and all other reviewers isn’t significant enough to rule out the possibility of it being due to random chance.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.6
4.5


Read more about our Reviewer Participation test.

Pass Unverified Purchases

6,237 of the 44,491 total reviews for this product are unverified purchases. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from unverified purchasers

from verified purchases


4.3
4.5


Unverified purchases may be the result of Kindle Unlimited readers, buyers who didn't pay full price, or reviewers who did not purchase the product at Amazon. Read more about our Unverified Purchases test.

Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

3% also reviewed:
Fifty Shades of Grey by E. L. James

3% also reviewed:
Gone Girl: A Novel by Julia Whelan

2% also reviewed:
Where She Went by Gayle Forman

2% also reviewed:
The Book Thief by Markus Zusak

Does not include products
from the same brand


7,629 of the 44,491 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.5
4.5


Read more about our Overlapping Review History test.

Pass Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.4, while the average ease score for reviewers in this category is 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.

4.4 Product's Average Ease Score

4.3 Category's Average Ease Score


4.4
4.3


Read more about our Reviewer Ease test.


Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.


4 of the 44,491 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from incentivized reviews

from non-incentivized reviews


4.8
4.5


Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.