Sport Kopfhörer, Fetta Kabelloser Bluetooth 4.1 In Ear Ohrhörer mit Eingebaut Mikrofon,...
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FAIL
Suspicious Reviewers

FAIL
Reviewer Ease

FAIL
Phrase Repetition

WARN
Overlapping Review History

WARN
Reviewer Participation

PASS
Rating Trend

PASS
Unverified Purchases

PASS
Word Count Comparison

PASS
Brand Repeats

PASS
Incentivized Reviews

PASS
Deleted Reviews

Most Trusted Reviews
guter Kopfhörer!Der Bügel ist etwas sperrig und legt sich nichts ... [Go to full review]
Jul 27, 2017
100%
TRUST
TRUST
-
Verified Purchaser
-
One-Hit Wonder
-
Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
Ich kaufte diese Kopfhörer weil ich viel Fahrrad fahre und ... [Go to full review]
Feb 17, 2017
10%
TRUST
TRUST
-
Verified Purchaser
-
Contains repetitive phrases (
show)
-
Take-Back Reviewer (97 deleted reviews; avg. rating: 5.0)
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Overlapping Review History: reviewed 3 of 9 top products
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Overrepresented Participation (posted 92 reviews)
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Easy Grader (avg. rating: 5.0)
Analysis Details
Fail
Suspicious Reviewers

Take-Back Reviewers
23 of the 47 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate 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 4.2. 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.
4.7 Product's Average Ease Score
4.2 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.
33 of the 47 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 4.2. 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
Overlapping Review History

Reviewers of this product have ALSO reviewed the following products:
13% also reviewed:
AsiaLONG Sport Smartwatch Bluetooth Smart Uhr... by AsiaLONG
13% also reviewed:
Esonstyle Bluetooth 4.1 Kopfhörer In Ear... by Esonstyle
11% also reviewed:
SOLMORE Mini 5W Disco RGB Stimme Aktiviert LED... by SOLMORE
11% also reviewed:
Esonstyle Kabelloser Over-Ear Stereo Faltbarer... by Esonstyle
11% also reviewed:
15W E27 LED Mais Birne Beleuchtung, Weiß 6000K... by BRIGENIUS
Does not include products
from the same brand
from the same brand
24 of the 47 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, the discrepancy in ratings between these reviewers and reviewers who have a more unique product review history isn't significant enough to rule out the possibility of it being due to random chance.
Warn
Reviewer Participation

-
- 57%
- 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 27 reviewers (or 57%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass
Rating Trend

-
- 0%
- Created on high-volume days
We counted 47 reviews for this product over the span of 221 days, an average of 0.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass
Unverified Purchases

1 of the 47 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
3 of the 47 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, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
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.
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.