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etérea Comfort Jersey Spannbettlaken - in viele Farben und alle Größen - 100% Baumwolle, Royal...
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Rating:
1,804 Reviews
39% of potentially unnatural reviews removed (Why?)
Adjusted:
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Report Info:
Last Updated: Apr 7, 2019
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Note: While Amazon.de claims 1,804 reviews, we counted 1,809 available on their site.

Report Card

Warn Overall Grade
FAIL Rating Trend
FAIL Brand Repeats
FAIL Suspicious Reviewers
FAIL Phrase Repetition
WARN Deleted Reviews
WARN Word Count Comparison
WARN Reviewer Participation
PASS Unverified Purchases
PASS Overlapping Review History
PASS Reviewer Ease
PASS Incentivized Reviews

Most Trusted Reviews

Einfach gut :-) [Go to full review]
Mar 28, 2019      
100% TRUST
  • Verified Purchaser
  • Easy Grader (avg. rating: 5.0)


Least Trusted Reviews

Alles super.Schnelle Lieferung und super Qualität für den guten Preis.Den ... [Go to full review]
Dec 16, 2011      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (29 words)
  • Contains repetitive phrases (show)
  • Brand Loyalist (5 of 6 reviews for this brand; avg rating: 5.0)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Rating Trend

  • 4%
  • Created over 13 days

We counted 1,809 reviews for this product over the span of 3,213 days, an average of 0.6 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 13 days exceeding this threshold:In total, we found that 80 reviews were created on just 13 days. The reviews on these high volume days have rated this product an average of 4.4 while reviews from other days have rated this product an average of 3.9. 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.

from reviews created on high volume days

from reviews created on normal volume days


4.4
3.9


Read more about our Rating Trend test.

Fail Brand Repeats

Brand Loyalists


89 of the 1,809 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.

from Brand Loyalists

from Non-Loyalists


4.2
3.9


Brand Monogamists


38 of the 1,809 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.

from Brand Monogamists

from Non-Monogamists


3.8
3.9


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

One-Hit Wonders


256 of the 1,809 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from one-hit wonders

from reviewers with more than one review


3.4
4.0


Take-Back Reviewers


286 of the 1,809 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 4.3 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.8. 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.3
3.8


Read more about our Suspicious Reviewers 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:
133 reviews
(4.0/5)
50 reviews
(4.8/5)
141 reviews
(3.6/5)
117 reviews
(4.6/5)
63 reviews
(5.0/5)
31 reviews
(2.9/5)
20 reviews
(3.2/5)
45 reviews
(4.1/5)
21 reviews
(4.5/5)
18 reviews
(4.6/5)
Show MoreShow Less
Common Phrases in Titles:
51 reviews
(4.6/5)
28 reviews
(3.8/5)
26 reviews
(1.2/5)
26 reviews
(2.1/5)
25 reviews
(2.4/5)
17 reviews
(4.8/5)
81 reviews
(4.4/5)
29 reviews
(3.7/5)
182 reviews
(3.5/5)
61 reviews
(4.4/5)
Show MoreShow Less


569 of the 1,809 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.0 while reviews without substantial repetitive phrases rated this product an average of 3.8. 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.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.0
3.8


Read more about our Phrase Repetition test.

Warn Deleted Reviews

We discovered a total of 52 deleted reviews for this product, with an average rating of 4.3. 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:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about the Deleted Reviews test here.

4.3 average rating of deleted reviews

4.3


Show distribution of deleted reviews

Warn Word Count Comparison

  • 45%
  • 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 816 reviews (or 45%) are within an overrepresented word count group. While this is more reviews from overrepresented word count groups than we'd expect to see, the discrepancy in ratings between reviews with overrepresented word groups and all other reviews isn’t significant enough to rule out the possibility of it being due to random chance.

from reviews with an overrepresented word count

from reviews with a properly represented word count


3.9
3.8


Read more about our Word Count Comparison test.

Warn Reviewer Participation

  • 50%
  • 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 906 reviewers (or 50%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


3.6
4.1


Read more about our Reviewer Participation test.

Pass Unverified Purchases

146 of the 1,809 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.

from unverified purchasers

from verified purchases


4.0
3.9


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 Overlapping Review History
  • 0%
  • Substantial overlapping review history
0 of the 1,809 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.
Read more about our Overlapping Review History 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 4.1, while the average ease score for reviewers in this category is 4.2.

4.1 Product's Average Ease Score

4.2 Category's Average Ease Score


4.1
4.2


Read more about our Reviewer Ease test.


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 1,809 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.

from incentivized reviews

from non-incentivized reviews


4.0
3.9


Read more about our Incentivized Reviews test, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.


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