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JVC HAS160R Flat Headphones - Red
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From JVC
This report was last updated 6/28/2021.
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Report Info:
Note: While Amazon.com claims 6,250 Ratings, we counted 3,190 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Pass Overall Grade
FAIL
Overlapping Review History

WARN
Deleted Reviews

WARN
Suspicious Reviewers

WARN
Reviewer Ease

PASS
Rating Trend

PASS
Unverified Purchases

PASS
Word Count Comparison

PASS
Phrase Repetition

PASS
Reviewer Participation

PASS
Brand Repeats

PASS
Incentivized Reviews

Most Trusted Reviews
The swivel hinge is made of cheap plastic and snapped ... [Go to full review]
Jul 28, 2020
100%
TRUST
TRUST
-
Verified Purchaser
-
Critical Reviewer (avg. rating: 3.2)
Least Trusted Reviews
very good sound and worth the price [Go to full review]
Jul 20, 2014
11%
TRUST
TRUST
-
Verified Purchaser
-
Overrepresented word count (8 words)
-
Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
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Overlapping Review History: reviewed 1 of 9 top products
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Easy Grader (avg. rating: 4.8)
Analysis Details
Fail
Overlapping Review History

Reviewers of this product have ALSO reviewed the following products:
1% also reviewed:
Certified Refurbished Fire TV Stick with Alexa... by Amazon Renewed
1% also reviewed:
Amazon Prime Video by Amazon.com
1% also reviewed:
Amazon Store Card by Synchrony Bank
Does not include products
from the same brand
from the same brand
272 of the 3,190 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.5 while the reviewers who have a more unique product review history 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.
Warn
Deleted Reviews

We discovered a total of 159 deleted Reviews for this product, with an average rating of 4.5. 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.
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.
Warn
Suspicious Reviewers

Take-Back Reviewers
1,489 of the 3,190 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, 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.
Warn
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 4.2, while the average ease score for reviewers in this category is 4.1. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.2 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass
Rating Trend

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- 2%
- Created over 12 days
We counted 3,190 reviews for this product over the span of 3,738 days, an average of 0.9 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.
However, we see the following 12 days exceeding this threshold:In total, we found that 77 reviews were created on just 12 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass
Unverified Purchases

167 of the 3,190 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

-
- 23%
- 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 729 reviews (or 23%) 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.
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:
186 reviews
(4.4/5)
(4.4/5)
84 reviews
(4.5/5)
(4.5/5)
60 reviews
(4.7/5)
(4.7/5)
Common Phrases in Titles:
70 reviews
(4.3/5)
(4.3/5)
27 reviews
(4.7/5)
(4.7/5)
116 of the 3,190 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.
Pass
Reviewer Participation

-
- 0%
- From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.
Read more about our Reviewer Participation test.
Pass
Brand Repeats

Brand Repeaters
325 of the 3,190 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. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.