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Hülle für iPhone 8 iPhone 7, FayTun Handyhülle für iPhone 7 iPhone 8-9H Harte... From FayTun Report Feedback

Fail Unnatural reviews detected

Original:

208 Reviews

Adjusted:

27 Reviews

Rank in: Hüllen & Cases
48%
9%

View/Edit Adjustment
How is this calculated
Report Last Updated: Dec 24, 2017
Update Available
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Report Card

Click a test to jump to details

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

Leider keine Qualität. Samtige Oberfläche blättert nach einer Woche Nutzung ... [Go to full review]
Oct 25, 2017      
90% TRUST
  • Verified Purchaser
  • Overrepresented Participation (posted 3 reviews)
  • Critical Reviewer (avg. rating: 1.0)


Least Trusted Reviews

Sehr gute Hülle, ist gut verarbeitet, riecht nicht und umschließt ... [Go to full review]
Nov 8, 2017      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Overrepresented word count (46 words)
  • Contains repetitive phrases (show)
  • One-Hit Wonder
  • Never-Verified Reviewer
  • Overlapping Review History: reviewed 4 of 9 top products
  • Overrepresented Participation (posted 1 review)
  • Easy Grader (avg. rating: 5.0)


Analysis Details


Fail Rating Trend

  • 14%
  • Created over 3 days

We counted 208 reviews for this product over the span of 109 days, an average of 1.9 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 8 or fewer reviews on any given day.

However, we see the following 3 days exceeding this threshold:In total, we found that 30 reviews were created on just 3 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 4.5. 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


4.9
4.5


Read more about our Rating Trend test.

Fail Unverified Purchases

110 of the 208 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.9 while the verified purchasers have rated this product an average of 4.1. 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 unverified purchasers

from verified purchases


4.9
4.1


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 Suspicious Reviewers

One-Hit Wonders


67 of the 208 reviewers have only reviewed this product. This is an excessively large percentage of One-Hit Wonders which may indicate unnatural reviews.

from one-hit wonders

from reviewers with more than one review


4.7
4.5


Never-Verified Reviewers


79 of the 208 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.9 while the reviewers who have written at least one verified purchase review rated this product an average of 4.3. 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 never-verified reviewers

from reviewers with at least one verified purchase review


4.9
4.3


Take-Back Reviewers


6 of the 208 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.3
4.5


Read more about our Suspicious Reviewers test.

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 4.6, while the average ease score for reviewers in this category is 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.

4.6 Product's Average Ease Score

4.0 Category's Average Ease Score


4.6
4.0


Read more about our Reviewer Ease test.


Fail Overlapping Review History
Does not include products
from the same brand


39 of the 208 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 5.0 while the reviewers who have a more unique product review history rated this product an average of 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


5.0
4.4


Read more about our Overlapping Review History test.

Warn Deleted Reviews

We discovered a total of 8 deleted reviews for this product, with an average rating of 5. 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.

5.0 average rating of deleted reviews

5.0



Read more about our Deleted Reviews test.

Warn Word Count Comparison

  • 46%
  • 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 96 reviews (or 46%) 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


4.7
4.4


Read more about our Word Count Comparison test.

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 Titles:
4 reviews
(1.9%)
4 reviews
(1.9%)
6 reviews
(2.9%)
5 reviews
(2.4%)
4 reviews
(1.9%)
2 reviews
(1.0%)
3 reviews
(1.4%)
4 reviews
(1.9%)
2 reviews
(1.0%)
6 reviews
(2.9%)
Show MoreShow Less


190 of the 208 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.6
4.2


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 88%
  • 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 184 reviewers (or 90%) 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


4.6
4.2


Read more about our Reviewer Participation test.

Pass Brand Repeats

Brand Monogamists


1 of the 208 reviewers has reviewed multiple products, but only for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from Brand Monogamists

from Non-Monogamists


5.0
4.5


Read more about our Brand Repeats test.

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.