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Amazon.com > Books > Teen & Young Adult > Literature & Fiction > Action & Adventure > Science Fiction
Obsidio (The Illuminae Files)
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From Amie Kaufman
This report was last updated 7/19/2021.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.com claims 1,053 Ratings, we counted 225 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
Warn Overall Grade
FAIL Rating Trend
FAIL Suspicious Reviewers
WARN Deleted Reviews
WARN Brand Repeats
WARN Reviewer Ease
WARN Phrase Repetition
PASS Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Participation
PASS Incentivized Reviews
Most Trusted Reviews
Obsidio is the endings of all MFing endings. Wow.As a ... [Go to full review]
Mar 22, 2018
100%
TRUST
TRUST
- Unverified Purchaser
- Easy Grader (avg. rating: 4.2)
Least Trusted Reviews
Obsidio was not originally one of my most anticipated books ... [Go to full review]
Apr 5, 2018
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Repeater (3 of 23 reviews for this brand; avg rating: 4.7)
- Overlapping Review History: reviewed 2 of 9 top products
- Easy Grader (avg. rating: 4.6)
Analysis Details
Fail Rating Trend
-
- 18%
- Created over 8 days
We counted 225 reviews for this product over the span of 1,199 days, an average of 0.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.
However, we see the following 8 days exceeding this threshold:In total, we found that 40 reviews were created on just 8 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 4.7. 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 Suspicious Reviewers
Take-Back Reviewers
79 of the 225 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.
Single-Day Reviewers
2 of the 225 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 3.5 while all other reviewers 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 Deleted Reviews
We discovered a total of 2 deleted Reviews for this product, with an average rating of 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 Brand Repeats
Brand Repeaters
110 of the 225 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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 4.2. 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
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn 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
10 reviews
(4.8/5)
(4.8/5)
3 reviews
(4.7/5)
(4.7/5)
12 reviews
(4.5/5)
(4.5/5)
5 reviews
(5.0/5)
(5.0/5)
7 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(4.0/5)
(4.0/5)
9 reviews
(4.8/5)
(4.8/5)
10 reviews
(4.7/5)
(4.7/5)
8 reviews
(4.9/5)
(4.9/5)
71 of the 225 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Pass Unverified Purchases
97 of the 225 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:
17% also reviewed:
Heir of Fire (Throne of Glass series Book 3) by Sarah J. Maas
13% also reviewed:
The Cruel Prince (The Folk of the Air, 1) by Holly Black
13% also reviewed:
Six Of Crows Crooked Kingdom by Leigh Bardugo
13% also reviewed:
Caraval by Stephanie Garber
12% also reviewed:
A Court of Thorns and Roses by Sarah J. Maas
12% also reviewed:
A Court of Mist and Fury (A Court of Thorns and... by Sarah J. Maas
12% also reviewed:
Nevernight (The Nevernight Chronicle Book 1) by Jay Kristoff
12% also reviewed:
Shatter Me by Tahereh Mafi
80 of the 225 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
-
- 27%
- 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 60 reviewers (or 27%) 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 Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
1 of the 225 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.