JVC Wireless Earclip Sport Headphone (Black) HA-EC30BTB
More product info
From JVC
Refresh the report to view the most up-to-date data available:
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (71 deleted Reviews; avg. rating: 4.0)
- Easy Grader (avg. rating: 4.2)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- Take-Back Reviewer (71 deleted Reviews; avg. rating: 4.1)
- Overlapping Review History: reviewed 3 of 9 top products
- Easy Grader (avg. rating: 4.3)
Analysis Details
Take-Back Reviewers
32 of the 39 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 4.1 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.0. 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.
We discovered a total of 1 deleted Review for this product, with an average rating of 4. 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:
- 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.
-
- 8%
- Created over 1 day
We counted 39 reviews for this product over the span of 763 days, an average of 0.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 3 reviews were created on just 1 day. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
(4.0/5)
(4.0/5)
(4.2/5)
(5.0/5)
(3.5/5)
(4.5/5)
(3.5/5)
(5.0/5)
(3.5/5)
(4.5/5)
9 of the 39 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
49% also reviewed:
The Stars, Like Dust (Galactic Empire series Book... by Isaac Asimov
38% also reviewed:
Frankincense Essential Oil Therapeutic Grade, 4... by Viva Naturals
36% also reviewed:
Saving Fish from Drowning by GP Putnam's Sons & Random House Publishing Group
36% also reviewed:
DII Oversize Woven Paper Storage Basket or Bin,... by DII
31% also reviewed:
DII Unisex Buffalo Check Kitchen Collection,... by DII
31% also reviewed:
Viva Naturals Charcoal Face Mask Set (8 Pack) -... by Viva Naturals
26% also reviewed:
TC Solid CHMBRY by
26% also reviewed:
Pre de Provence Soap by Pre de Provence
from the same brand
22 of the 39 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.
1 of the 39 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.
-
- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
-
- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
4.2 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
2 of the 39 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.
-
- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.