Storm and Fury (The Harbinger Series Book 1)
More product info
From Jennifer L. Armentrout
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (484 deleted Reviews; avg. rating: 4.3)
- Easy Grader (avg. rating: 4.3)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Created on a high volume day
- Admitted to receiving an incentive
- Contains repetitive phrases (show)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Overrepresented Participation (posted 24 Reviews)
- Easy Grader (avg. rating: 4.5)
Analysis Details
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- 77%
- Created over 7 days
We counted 184 reviews for this product over the span of 105 days, an average of 1.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 7 or fewer reviews on any given day.
However, we see the following 7 days exceeding this threshold:In total, we found that 141 reviews were created on just 7 days. The reviews on these high volume days have rated this product an average of 4.5 while reviews from other days have rated this product an average of 4.2. 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.
Take-Back Reviewers
55 of the 184 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.
4.5 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
22% also reviewed:
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16% also reviewed:
Wicked (A Wicked Trilogy Book 1) by Jennifer L. Armentrout
14% also reviewed:
Heir of Fire (Throne of Glass series Book 3) by Sarah J. Maas
13% also reviewed:
A Court of Thorns and Roses by Sarah J. Maas
13% also reviewed:
Origin (A Lux Novel) by Jennifer L. Armentrout
13% also reviewed:
Fire in You (Wait for You Series Book 6) by J. Lynn
12% also reviewed:
Obsidian (Lux) by Entangled Teen
12% also reviewed:
A Court of Mist and Fury (A Court of Thorns and... by Sarah J. Maas
11% also reviewed:
Opposition (A Lux Novel Book 5) by Jennifer L. Armentrout
79 of the 184 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.6 while the reviewers who have a more unique product review history 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.
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- 39%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 71 reviewers (or 39%) are within an overrepresented participation group. These reviews have rated this product an average of 4.6, 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.
131 of the 184 total reviews for this product are unverified purchases. While this is a higher percentage of unverified purchases than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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.
26 of the 184 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is more than we would expect see; the presences of at least one incentivized review indicates that there may be more, since not all reviewers will disclose that they had received an incentive to post a review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
(4.3/5)
(4.3/5)
(4.5/5)
(4.4/5)
(4.3/5)
(4.0/5)
(4.5/5)
(4.7/5)
(4.4/5)
(4.5/5)
147 of the 184 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
Brand Repeaters
- 0
- Reviews have been deleted
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.