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Coda: (The Submission Series #9) (Songs of Submission)
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From CD Reiss
This report was last updated 5/30/2017.
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Report Info:
Last Updated: May 30, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Rating Trend
FAIL Reviewer Ease
FAIL Phrase Repetition
WARN Suspicious Reviewers
WARN Overlapping Review History
WARN Reviewer Participation
PASS Unverified Purchases
PASS Word Count Comparison
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
Loved it. [Go to full review]
Feb 4, 2016
100%
TRUST
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 4.9)
Least Trusted Reviews
In all honesty, I was happy at the end of ... [Go to full review]
Mar 22, 2015
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 (7 of 41 reviews for this brand; avg rating: 4.9)
- Overlapping Review History: reviewed 2 of 9 top products
- Overrepresented Participation (posted 41 Reviews)
- Easy Grader (avg. rating: 4.8)
Analysis Details
Fail Rating Trend
-
- 71%
- Created over 15 days
We counted 356 reviews for this product over the span of 759 days, an average of 0.5 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 4 or fewer reviews on any given day.
However, we see the following 15 days exceeding this threshold:In total, we found that 252 reviews were created on just 15 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 4.7, while the average ease score for reviewers in this category is 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.
4.7 Product's Average Ease Score
4.4 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.
Common Phrases in Reviews:
Show MoreShow Less
5 reviews
5 reviews
123 reviews
22 reviews
52 reviews
3 reviews
3 reviews
3 reviews
3 reviews
158 of the 356 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.
Warn Suspicious Reviewers
Take-Back Reviewers
15 of the 356 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
23% also reviewed:
Three, Two, One (321): Not Everything Should Come... by J A Huss
16% also reviewed:
Eighteen (18) by Huss, JA
16% also reviewed:
Driven (The Driven Series Book 1) by K. Bromberg
15% also reviewed:
Black Lies by Torre, Alessandra
14% also reviewed:
Fifty Shades Of Grey (Turtleback School & Library... by E. L. James
13% also reviewed:
Captivated by You (Crossfire) by Sylvia Day
12% also reviewed:
Wrong by Jana Aston
12% also reviewed:
Slow Burn: A Driven Novel (The Driven Series) by K. Bromberg
Does not include products
from the same brand
from the same brand
189 of the 356 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Warn Reviewer Participation
-
- 69%
- 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 245 reviewers (or 69%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
45 of the 356 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 Brand Repeats
Brand Repeaters
10 of the 356 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.
4 of the 356 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.