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From Gail McHugh
This report was last updated 11/12/2018.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Word Count Comparison
FAIL Phrase Repetition
FAIL Overlapping Review History
WARN Deleted Reviews
WARN Rating Trend
WARN Suspicious Reviewers
WARN Reviewer Participation
PASS Unverified Purchases
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
This book was terrible on so many levels. First, the ... [Go to full review]
May 23, 2018
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (4 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.6)
Least Trusted Reviews
I loved this book!! A definite page turner! I can't ... [Go to full review]
Feb 27, 2013
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Overrepresented word count (24 words)
- Contains repetitive phrases (show)
- Overlapping Review History: reviewed 1 of 9 top products
- Overrepresented Participation (posted 9 Reviews)
- Critical Reviewer (avg. rating: 4.3)
Analysis Details
Fail 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 511 reviews (or 21%) are within an overrepresented word count group. These reviews have rated this product an average of 4.7, while all other reviews have 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.
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
56 reviews
(4.9/5)
(4.9/5)
46 reviews
(4.9/5)
(4.9/5)
104 reviews
(4.9/5)
(4.9/5)
85 reviews
(4.9/5)
(4.9/5)
62 reviews
(4.9/5)
(4.9/5)
38 reviews
(4.3/5)
(4.3/5)
29 reviews
(4.9/5)
(4.9/5)
88 reviews
(3.2/5)
(3.2/5)
55 reviews
(4.9/5)
(4.9/5)
68 reviews
(4.5/5)
(4.5/5)
Common Phrases in Titles:
70 reviews
(5.0/5)
(5.0/5)
478 of the 2,463 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.8 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
30% also reviewed:
Pulse (Collide) (Volume 2) by Brand: CreateSpace Independent Publishing Platform
14% also reviewed:
Real (The REAL series Book 1) by Katy Evans
13% also reviewed:
Rush Too Far: A Rosemary Beach Novel (The... by Abbi Glines
13% also reviewed:
The Edge of Never by J .A. Redmerski
12% also reviewed:
Existence by Abbi Glines
11% also reviewed:
Driven (The Driven Series Book 1) by K. Bromberg
11% also reviewed:
Consequences: Book 1 of the Consequences Series by Aleatha Romig
11% also reviewed:
Down London Road (On Dublin Street Book 2) by Samantha Young
Does not include products
from the same brand
from the same brand
1,306 of the 2,463 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.5 while the reviewers who have a more unique product review history 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 Deleted Reviews
We discovered a total of 38 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
-
- 59%
- Created over 111 days
We counted 2,463 reviews for this product over the span of 2,069 days, an average of 1.2 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 111 days exceeding this threshold:In total, we found that 1,458 reviews were created on just 111 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Suspicious Reviewers
Take-Back Reviewers
113 of the 2,463 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
-
- 66%
- From reviewers with an overrepresented participation
We see the following 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 1616 reviewers (or 66%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
426 of the 2,463 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 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.
4.4 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
61 of the 2,463 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.
11 of the 2,463 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.