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Fatal Frenzy (The Fatal Series Book 9)
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From Marie Force
This report was last updated 7/24/2017.
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Report Info:
Last Updated: Jul 24, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in United States with authentic reviews:
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Warn Overall Grade
FAIL Rating Trend
FAIL Reviewer Ease
FAIL Phrase Repetition
FAIL Overlapping Review History
WARN Suspicious Reviewers
WARN Reviewer Participation
PASS Unverified Purchases
PASS Word Count Comparison
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
This series keeps getting better and better...how is that possible!!??? ... [Go to full review]
Jan 7, 2016
95%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (38 deleted Reviews; avg. rating: 4.6)
- Brand Repeater (4 of 280 reviews for this brand; avg rating: 5.0)
- Easy Grader (avg. rating: 4.9)
Least Trusted Reviews
I loved this book, I have read all of them. ... [Go to full review]
Oct 7, 2015
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- Take-Back Reviewer (11 deleted Reviews; avg. rating: 4.4)
- Brand Repeater (2 of 19 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.9)
Analysis Details
Fail Rating Trend
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- 43%
- Created over 14 days
We counted 697 reviews for this product over the span of 618 days, an average of 1.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.
However, we see the following 14 days exceeding this threshold:In total, we found that 303 reviews were created on just 14 days. The reviews on these high volume days have rated this product an average of 4.9 while reviews from other days have rated this product an average of 4.8. 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.
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 4.6, while the average ease score for reviewers in this category is 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.
4.6 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
164 of the 697 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases rated this product an average of 4.8. 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
11% also reviewed:
Virtuous (Quantum Series Book 1) by M.S. Force
10% also reviewed:
Rapturous: Quantum Series, Book 4 by M.S. Force
9% also reviewed:
Victorious (Quantum Series Book 3) by Marie Force
9% also reviewed:
Valorous (Quantum Series Book 2) by M.S. Force
4% also reviewed:
Grey: Fifty Shades of Grey as Told by Christian... by E L James
3% also reviewed:
Fifty Shades Freed: Book Three of the Fifty... by Doubleday
2% also reviewed:
One with You by Sylvia Day
2% also reviewed:
The Obsession by Nora Roberts
2% also reviewed:
Crashed (The Driven Series Book 3) by K. Bromberg
165 of the 697 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 5.0 while the reviewers who have a more unique product review history rated this product an average of 4.8. 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 Suspicious Reviewers
Take-Back Reviewers
22 of the 697 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.
Warn Reviewer Participation
-
- 76%
- 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 531 reviewers (or 76%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
56 of the 697 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
-
- 21%
- 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 146 reviews (or 21%) are within an overrepresented word count group. 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
121 of the 697 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.
-
- 0%
- Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive 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.
Pass Deleted Reviews
- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
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.