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Beyond Judgment (Brainrush)
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From Thomas & Mercer
This report was last updated 4/20/2017.
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Report Info:
Last Updated: Apr 20, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Thrillers with authentic reviews:
Report Card
Warn Overall Grade
FAIL Suspicious Reviewers
FAIL Phrase Repetition
WARN Rating Trend
WARN Reviewer Ease
WARN Reviewer Participation
PASS Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
A really enthralling trilogy with enough twists an turns to ... [Go to full review]
Mar 11, 2014
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.5)
Least Trusted Reviews
This is a high octane read, you step from one ... [Go to full review]
Jul 19, 2014
5%
TRUST
TRUST
- Verified Purchaser
- Contains repetitive phrases (show)
- Take-Back Reviewer (5 deleted Reviews; avg. rating: 4.8)
- Overlapping Review History: reviewed 6 of 9 top products
- Easy Grader (avg. rating: 4.5)
Analysis Details
Fail Suspicious Reviewers
Take-Back Reviewers
5 of the 99 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 3.4 while the reviewers who don't have any deleted reviews in their history 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.
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
3 reviews
3 reviews
6 reviews
4 reviews
4 reviews
2 reviews
2 reviews
4 reviews
3 reviews
2 reviews
31 of the 99 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 4.2. 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.
Warn Rating Trend
-
- 18%
- Created over 5 days
We counted 99 reviews for this product over the span of 1,306 days, an average of 0.1 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 5 days exceeding this threshold:In total, we found that 18 reviews were created on just 5 days. This is an excessively high number of reviews submitted on these high volume days.
Warn 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 4.4. 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
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Reviewer Participation
-
- 74%
- 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 73 reviewers (or 74%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
16 of the 99 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
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- 28%
- 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 28 reviews (or 28%) 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
9% also reviewed:
Vanish Fabric Stain Remover Gold Oxi Action... by Vanish
8% also reviewed:
The Lost Library by A.M. Dean
7% also reviewed:
The Keeper (DI Sean Corrigan, Book 2) (Di Sean... by Harper Collins
7% also reviewed:
The Strange Death of Fiona Griffiths: Fiona... by Harry Bingham
6% also reviewed:
The Corporal's Wife by Hodder & Stoughton General Division
5% also reviewed:
The Sudden Arrival of Violence (The Glasgow... by Malcolm Mackay
5% also reviewed:
This is Life by Dan Rhodes
5% also reviewed:
Holy Spy: John Shakespeare 6 by Rory Clements
Does not include products
from the same brand
from the same brand
15 of the 99 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
5 of the 99 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.