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Amazon.com > Electronics > Headphones, Earbuds & Accessories > Headphones & Earbuds > Earbud Headphones
Bluetooth Headphones M Barr V9 Wireless Earbuds in-Ear Sport V4.0 Earphones with MIC 9H Playing...
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From M Barr
This report was last updated 1/14/2019.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Overlapping Review History
WARN Rating Trend
WARN Unverified Purchases
WARN Word Count Comparison
WARN Phrase Repetition
WARN Reviewer Participation
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
We couldn't find any quality reviewsLeast Trusted Reviews
Works great! Came fast and is good quality! [Go to full review]
Jan 7, 2019
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Overrepresented word count (8 words)
- Contains repetitive phrases (show)
- Never-Verified Reviewer
- Take-Back Reviewer (9 deleted Reviews; avg. rating: 4.6)
- Overlapping Review History: reviewed 7 of 9 top products
- Overrepresented Participation (posted 649 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Deleted Reviews
We discovered a total of 209 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.
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.
Fail Suspicious Reviewers
Never-Verified Reviewers
480 of the 598 reviewers have never written a verified purchase review. This is an excessively large percentage of Never-Verified Reviewers which may indicate unnatural reviews.
Take-Back Reviewers
3 of the 598 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.
Single-Day Reviewers
133 of the 598 reviewers have written multiple reviews but posted all of them on a single day. While this is more Single-Day Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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 4.9, while the average ease score for reviewers in this category is 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.
4.9 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
102% also reviewed:
Smart Watch Charger with Magnetic Pad USB... by Evanee
95% also reviewed:
Lightning Cable, NganHing Charging Cable 5-Pack... by NganHing
95% also reviewed:
Lightning Cable, NganHing iPhone Charger Fast... by NganHing
93% also reviewed:
Phone Charger High Speed Powerline Fast Data... by Larnn
74% also reviewed:
V5.0 Bluetooth Headphone Larnn in-Ear Earbuds... by Larnn
73% also reviewed:
Smart Watch Charger Simple Portable Charging... by Evanee
70% also reviewed:
Bluetooth Headphones Hong S Bluetooth V5.0... by Hong S
Does not include products
from the same brand
from the same brand
596 of the 598 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 1.0. 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.
Warn Rating Trend
-
- 76%
- Created over 2 days
We counted 598 reviews for this product over the span of 4 days, an average of 149.5 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 183 or fewer reviews on any given day.
However, we see the following 2 days exceeding this threshold:In total, we found that 454 reviews were created on just 2 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Unverified Purchases
-
- 100%
- Unverified Purchases
598 of the 598 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate unnatural reviews.
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.
Warn Word Count Comparison
-
- 93%
- 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 3 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 554 reviews (or 93%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
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 Reviews:
Show MoreShow Less
8 reviews
(5.0/5)
(5.0/5)
8 reviews
(5.0/5)
(5.0/5)
7 reviews
(5.0/5)
(5.0/5)
8 reviews
(5.0/5)
(5.0/5)
6 reviews
(5.0/5)
(5.0/5)
8 reviews
(5.0/5)
(5.0/5)
6 reviews
(5.0/5)
(5.0/5)
189 of the 598 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn Reviewer Participation
-
- 40%
- 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 240 reviewers (or 40%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
Pass Brand Repeats
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
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.