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Rosenstein & Söhne Edelstahl-Wasserkocher WSK-300.set mit Teekanne From Rosenstein & Söhne Report Feedback

Warn Unnatural reviews possible

Original:

25 Reviews

Adjusted:

13 Reviews

2%
3%

View/Edit Adjustment
How is this calculated
Last Updated: 7/17/2017
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Report Card

Click a test to jump to details

FAIL Rating Trend
FAIL Suspicious Reviewers
FAIL Reviewer Participation
WARN Word Count Comparison
PASS Unverified Purchases
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Skewed Helpfulness
PASS Incentivized Reviews
PASS Deleted Reviews
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Most Trusted Reviews

Kurz und knappPositiv:- Design- und praktischNegativ:- sehr laut- Wasserkocher und ... [Go to full review]
Dec 3, 2015      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 2.7)


Least Trusted Reviews

Lässt nach einiger Zeit Wasser durch.Habe für mich und meine ... [Go to full review]
Apr 27, 2016      
0% TRUST
  • Verified Purchaser
  • Overrepresented word count (27 words)
  • One-Hit Wonder
  • Overrepresented Participation (posted 1 review)
  • Critical Reviewer (avg. rating: 1.0)


Analysis Details


Fail Rating Trend

  • 16%
  • Created over 2 days

We counted 25 reviews for this product over the span of 1,088 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day.

However, we see the following 2 days exceeding this threshold:In total, we found that 4 reviews were created on just 2 days. The reviews on these high volume days have rated this product an average of 4.3 while reviews from other days have rated this product an average of 2.5. 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.

from reviews created on high volume days

from reviews created on normal volume days


4.3
2.5


Read more about our Rating Trend test.

Fail Suspicious Reviewers

One-Hit Wonders


5 of the 25 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 1.0 while the reviewers who have posted more than one review have rated this product an average of 3.2. 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.

from one-hit wonders

from reviewers with more than one review


1.0
3.2


Read more about our Suspicious Reviewers test.

Fail Reviewer Participation

  • 64%
  • 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 16 reviewers (or 64%) are within an overrepresented participation group. These reviews have rated this product an average of 2.1, while all other reviews 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 reviewers with an overrepresented participation

From reviewers with a properly represented participation


2.1
3.9


Read more about our Reviewer Participation test.

Warn Word Count Comparison

  • 48%
  • 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 12 reviews (or 48%) 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


3.0
2.5


Read more about our Word Count Comparison test.

Pass Unverified Purchases

3 of the 25 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


1.3
3.0


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 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:
4 reviews
(16.0%)
2 reviews
(8.0%)
2 reviews
(8.0%)
2 reviews
(8.0%)
Show MoreShow Less
Common Phrases in Titles:
2 reviews
(8.0%)


3 of the 25 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


1.3
3.0


Read more about our Phrase Repetition test.

Pass Overlapping Review History
  • 0%
  • Substantial overlapping review history
0 of the 25 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 3, while the average ease score for reviewers in this category is 4.2.

3.0 Product's Average Ease Score

4.2 Category's Average Ease Score


3.0
4.2


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters

We didn't detect a substantial amount of Brand Repeaters.

Pass Skewed Helpfulness
We examined the average net helpfulness score of negative reviews against the average net helpfulness score of positive reviews. The net helpfulness score is the number of times a review has been marked as helpful minus the number of times a review has been marked as unhelpful. We could not find any statistically significant difference in average net helpfulness score between the negative reviews and positive reviews.

0.0 average net helpfulness for positive reviews

0.0 average net helpfulness for negative reviews


Read more about our Skewed Helpfulness 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.

  • 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, or 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.
Read more about our Deleted Reviews test.