Close
CyberStorm: A Novel
More product info
From Matthew Mather
This report was last updated 9/9/2020.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
View/Edit Adjustment
Jump to Report Card
Report Info:
Note: While Amazon.com claims 9,535 Ratings, we counted 8,890 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Pass Overall Grade
FAIL Suspicious Reviewers
FAIL Phrase Repetition
WARN Deleted Reviews
WARN Rating Trend
PASS Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Participation
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
Overall really liked this book- the characters were very resourceful ... [Go to full review]
Mar 12, 2019
100%
TRUST
TRUST
- Unverified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 4.7)
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
I very much enjoyed this book. Great pace and addresses ... [Go to full review]
Jul 30, 2013
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- One-Hit Wonder
- Take-Back Reviewer (1 deleted Review; avg. rating: 2.0)
- Overrepresented Participation (posted 1 Review)
- Critical Reviewer (avg. rating: 4.0)
Analysis Details
Fail Suspicious Reviewers
Never-Verified Reviewers
470 of the 8,890 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.4 while the reviewers who have written at least one verified purchase review 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.
Take-Back Reviewers
2,598 of the 8,890 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.
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:
Show MoreShow Less
285 reviews
(4.8/5)
(4.8/5)
200 reviews
(4.6/5)
(4.6/5)
163 reviews
(4.7/5)
(4.7/5)
110 reviews
(4.8/5)
(4.8/5)
273 reviews
(4.5/5)
(4.5/5)
144 reviews
(4.8/5)
(4.8/5)
131 reviews
(4.7/5)
(4.7/5)
Common Phrases in Titles:
102 reviews
(4.9/5)
(4.9/5)
166 reviews
(4.5/5)
(4.5/5)
60 reviews
(4.9/5)
(4.9/5)
604 of the 8,890 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.7 while reviews without substantial repetitive phrases 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.
Warn Deleted Reviews
We discovered a total of 130 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:
- 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 Rating Trend
-
- 18%
- Created over 105 days
We counted 8,890 reviews for this product over the span of 2,735 days, an average of 3.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 11 or fewer reviews on any given day.
However, we see the following 105 days exceeding this threshold:In total, we found that 1,588 reviews were created on just 105 days. This is an excessively high number of reviews submitted on these high volume days.
Pass Unverified Purchases
3,966 of the 8,890 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.
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 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:
3% also reviewed:
Wool by Hugh Howey
3% also reviewed:
Breakthrough by Michael C. Grumley
3% also reviewed:
The Martian: Classroom Edition: A Novel by Andy Weir
2% also reviewed:
The Hunger Games (Hunger Games Trilogy, Book 1) by Suzanne Collins
2% also reviewed:
Split Second (Split Second Book 1) by Douglas E. Richards
2% also reviewed:
The Atlantis Plague: A Thriller (The Origin... by A.G. Riddle
2% also reviewed:
Wired by Douglas E. Richards
2% also reviewed:
Insurgent: Divergent, Book 2 by Veronica Roth
Does not include products
from the same brand
from the same brand
1,514 of the 8,890 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 Reviewer Participation
-
- 24%
- 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 2162 reviewers (or 24%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
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 4.3, while the average ease score for reviewers in this category is 4.3.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
853 of the 8,890 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.
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.
6 of the 8,890 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.