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Ruby Red (Ruby Red Trilogy Book 1)
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From Kerstin Gier
This report was last updated 7/8/2017.
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Report Info:
Last Updated: Jul 8, 2017
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Note: While Amazon.com claims 578 Ratings, we counted 320 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 Reviewer Ease
WARN Rating Trend
WARN Phrase Repetition
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
While Ruby Red was a good and unique read, Sapphire ... [Go to full review]
Dec 6, 2012
100%
TRUST
TRUST
- Unverified Purchaser
- Take-Back Reviewer (23 deleted Reviews; avg. rating: 4.2)
- Overlapping Review History: reviewed 2 of 9 top products
- Critical Reviewer (avg. rating: 3.9)
Least Trusted Reviews
We couldn't find any low-quality reviewsAnalysis Details
Fail Suspicious Reviewers
Take-Back Reviewers
35 of the 320 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate 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 4.4, 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.
4.4 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Rating Trend
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- 9%
- Created over 9 days
We counted 320 reviews for this product over the span of 2,216 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 9 days exceeding this threshold:In total, we found that 29 reviews were created on just 9 days. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.
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
6 reviews
5 reviews
15 reviews
10 reviews
20 reviews
5 reviews
4 reviews
12 reviews
8 reviews
10 reviews
116 of the 320 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
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 242 reviewers (or 76%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
116 of the 320 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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- 19%
- 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 62 reviews (or 19%) 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:
17% also reviewed:
Insurgent: Divergent, Book 2 by Veronica Roth
10% also reviewed:
The Selection by Kiera Cass
10% also reviewed:
The Hunger Games (Hunger Games Trilogy, Book 1) by Suzanne Collins
8% also reviewed:
Allegiant CD (Divergent Series) by Katherine Tegen Books
7% also reviewed:
Shatter Me by Tahereh Mafi
7% also reviewed:
The Fault in Our Stars by John Green
7% also reviewed:
Scarlet (Lunar Chronicles, Book 2) (The Lunar... by Feiwel & Friends
7% also reviewed:
Shiver by Scholastic Paperbacks
Does not include products
from the same brand
from the same brand
111 of the 320 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
12 of the 320 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.
1 of the 320 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.
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.