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Bluetooth Headphones: Stalion Sound Wireless Stereo Sports Headset Universal for iPhone 6s Plus...
More product info From Stalion


Rating:
739 Reviews
100% of potentially unnatural reviews removed (Why?)
Adjusted:
Insufficient trustworthy reviews



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Last Updated: Oct 27, 2016
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Note: While Amazon.com claims 739 reviews, we counted 1,435 available on their site.
Note: While we've examined all 1,435 reviews, our reviewer analysis is based on a sample of 1,016 reviewers.

Report Card

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

Most Trusted Reviews

We couldn't find any quality reviews

Least Trusted Reviews

I purchased and am reviewing the Bluetooth Headphones: StalionĀ« Sound ... [Go to full review]
Feb 3, 2016      
0% TRUST
  • Unverified Purchaser
  • Admitted to receiving an incentive
  • Contains repetitive phrases (show)
  • Take-Back Reviewer (71 deleted reviews; avg. rating: 4.9)
  • Brand Repeater (5 of 77 reviews for this brand; avg rating: 5.0)
  • Overrepresented Participation (posted 77 reviews)
  • Easy Grader (avg. rating: 4.8)


Analysis Details

Fail Unverified Purchases

1,339 of the 1,435 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.2 while the verified purchasers have rated this product an average of 3.3. 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 unverified purchasers

from verified purchases


4.2
3.3


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 Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.


766 of the 1,435 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. Incentivized reviews have rated this product an average of 4.3 while reviews that were not incentivized 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 incentivized reviews

from non-incentivized reviews


4.3
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.

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

4.5 Product's Average Ease Score

4.3 Category's Average Ease Score


4.5
4.3


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.

Common Phrases in Titles:
45 reviews
54 reviews
16 reviews


194 of the 1,435 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.4 while reviews without substantial repetitive phrases 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 reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.4
4.1


Read more about our Phrase Repetition test.

Warn Rating Trend

Warn Brand Repeats

Brand Repeaters


561 of a random sample of 1,016 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Repeaters

from Non-Repeaters


4.3
4.1


Read more about our Brand Repeats test.

Warn Suspicious Reviewers

Take-Back Reviewers


1 of a random sample of 1,016 reviewers has 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, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.

from take-back reviewers

from reviewers without previously deleted reviews


5.0
4.2


Read more about our Suspicious Reviewers test.

Warn Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

Does not include products
from the same brand


664 of a random sample of 1,016 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.2
4.3


Read more about our Overlapping Review History test.

Pass Word Count Comparison

  • 21%
  • 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 297 reviews (or 21%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.2
4.1


Read more about our Word Count Comparison test.

Pass Reviewer Participation

  • 25%
  • 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 254 of our sample of 1016 reviewers (or 25%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.3
4.2


Read more about our Reviewer Participation test.

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:
  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.


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