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Concrete and Gold
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From Foo Fighters
This report was last updated 9/1/2019.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Rock with authentic reviews:
Report Card
Warn Overall Grade
FAIL Unverified Purchases
FAIL Word Count Comparison
WARN Rating Trend
WARN Phrase Repetition
WARN Reviewer Participation
PASS Suspicious Reviewers
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
Great songs. [Go to full review]
Apr 14, 2018
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.5)
Least Trusted Reviews
Kick ass album. Love it and completely obsessed [Go to full review]
Sep 22, 2017
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Overrepresented word count (10 words)
Reviewer data not yet gathered.
Analysis Details
Fail Unverified Purchases
69 of the 367 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 3.6 while the verified purchasers have rated this product an average of 4.5. 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.
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.
Fail Word Count Comparison
-
- 29%
- 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 107 reviews (or 29%) 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 4.2. 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
-
- 32%
- Created over 10 days
We counted 367 reviews for this product over the span of 695 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 10 days exceeding this threshold:In total, we found that 116 reviews were created on just 10 days. This is an excessively high number of reviews submitted on these high volume days.
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
21 reviews
(4.0/5)
(4.0/5)
17 reviews
(4.0/5)
(4.0/5)
44 reviews
(4.0/5)
(4.0/5)
11 reviews
(3.7/5)
(3.7/5)
10 reviews
(3.2/5)
(3.2/5)
7 reviews
(3.4/5)
(3.4/5)
4 reviews
(4.0/5)
(4.0/5)
10 reviews
(3.0/5)
(3.0/5)
9 reviews
(3.3/5)
(3.3/5)
10 reviews
(4.5/5)
(4.5/5)
Common Phrases in Titles:
4 reviews
(4.0/5)
(4.0/5)
3 reviews
(5.0/5)
(5.0/5)
6 reviews
(4.0/5)
(4.0/5)
47 of the 367 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 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 279 reviewers (or 76%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Suspicious Reviewers
One-Hit Wonders
15 of the 367 reviewers have only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Never-Verified Reviewers
16 of the 367 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Take-Back Reviewers
87 of the 367 reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Single-Day Reviewers
7 of the 367 reviewers have written multiple reviews but posted all of them on a single day. 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:
Sonic Highways by Foo Fighters
5% also reviewed:
Wasting Light by FOO FIGHTERS
2% also reviewed:
Hardwired...To Self-Destruct (Deluxe) by Rhino/Blackened Recordings ADA
2% also reviewed:
Mr. Mercedes: A Novel (1) (The Bill Hodges... by Stephen King
2% also reviewed:
Eat The Elephant by BMG Rights Management (US) LLC
2% also reviewed:
Hesitation Marks [Explicit] by Columbia
2% also reviewed:
Dark Before Dawn by Breaking Benjamin
Does not include products
from the same brand
from the same brand
65 of the 367 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 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
5 of the 367 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.