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Piercing the Fold: Book 1
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From Venessa Kimball
This report was last updated 11/11/2018.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Incentivized Reviews
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Reviewer Participation
WARN Deleted Reviews
WARN Unverified Purchases
WARN Phrase Repetition
PASS Rating Trend
PASS Word Count Comparison
PASS Overlapping Review History
PASS Brand Repeats
Most Trusted Reviews
The book is about a young woman that begins experiencing ... [Go to full review]
Mar 29, 2013
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 4.0)
- Easy Grader (avg. rating: 4.4)
Least Trusted Reviews
I would have given this a higher rating if it ... [Go to full review]
Jun 4, 2016
0%
TRUST
TRUST
- Unverified Purchaser
- Admitted to receiving an incentive
- Contains repetitive phrases (show)
- Easy Grader (avg. rating: 4.5)
Analysis Details
Fail Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
6 of the 67 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. Incentivized reviews have rated this product an average of 3.0 while reviews that were not incentivized rated this product an average of 4.3. 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Fail Suspicious Reviewers
Take-Back Reviewers
8 of the 67 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Fail 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 4.5, while the average ease score for reviewers in this category is 4.3. 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.
4.5 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Reviewer Participation
-
- 21%
- 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 14 reviewers (or 21%) are within an overrepresented participation group. These reviews have rated this product an average of 4.7, while all other reviews have rated this product an average of 4.1. 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.
Warn Deleted Reviews
We discovered a total of 1 deleted Review for this product, with an average rating of 4. 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:
- 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.
- We have no information on reviews that were never published in the first place.
- 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.
Warn Unverified Purchases
51 of the 67 total reviews for this product are unverified purchases. While this is a higher percentage of unverified purchases than we'd expect to see, the discrepancy in ratings between the unverified purchases and verified purchases isn't significant enough to rule out the possibility of it being due to random chance.
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.
Warn 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:
Show MoreShow Less
3 reviews
(4.0/5)
(4.0/5)
2 reviews
(4.0/5)
(4.0/5)
5 reviews
(4.2/5)
(4.2/5)
3 reviews
(4.0/5)
(4.0/5)
3 reviews
(4.3/5)
(4.3/5)
2 reviews
(3.0/5)
(3.0/5)
2 reviews
(4.0/5)
(4.0/5)
5 reviews
(4.2/5)
(4.2/5)
5 reviews
(4.6/5)
(4.6/5)
2 reviews
(4.5/5)
(4.5/5)
Common Phrases in Titles:
2 reviews
(4.5/5)
(4.5/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
29 of the 67 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Pass Rating Trend
-
- 4%
- Created over 1 day
We counted 67 reviews for this product over the span of 1,423 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 3 reviews were created on just 1 day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Word Count Comparison
-
- 0%
- Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.
Read more about our Word Count Comparison test.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
16% also reviewed:
The Hunger Games (Hunger Games Trilogy, Book 1) by Suzanne Collins
9% also reviewed:
Destine by Brand: Anchor Group
9% also reviewed:
Baby: An Alien Apocalyptic Saga (Species... by J.K. Accinni
7% also reviewed:
Beautiful Disaster by Jamie McGuire
7% also reviewed:
Talented by Sophie Davis
7% also reviewed:
Ethan's Story; My Life With Autism by Ethan Rice
7% also reviewed:
The Orb of Truth: Book #1 of the Horn King Series by Brae Wyckoff
7% also reviewed:
Wind Warrior (World Aflame Book 1) by Jon Messenger
6% also reviewed:
Where She Went by Gayle Forman
21 of the 67 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.
Pass Brand Repeats
Brand Repeaters
7 of the 67 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.