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LEMFO Wireless Bluetooth V4.1 Earbuds Noise Cancelling Sports Running Gym Exercise Sweatproof...
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From LEMFO
This report was last updated 5/10/2017.
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Report Info:
Last Updated: May 10, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Warn Overall Grade
FAIL Deleted Reviews
FAIL Unverified Purchases
FAIL Incentivized Reviews
FAIL Suspicious Reviewers
FAIL Overlapping Review History
WARN Phrase Repetition
WARN Reviewer Participation
PASS Rating Trend
PASS Word Count Comparison
PASS Reviewer Ease
PASS Brand Repeats
Most Trusted Reviews
Great product. For my fist wireless headphones they're great [Go to full review]
Aug 13, 2015
100%
TRUST
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 5.0)
Least Trusted Reviews
So far so good. I got these a little over ... [Go to full review]
Feb 20, 2016
0%
TRUST
TRUST
- Unverified Purchaser
- Admitted to receiving an incentive
- Contains repetitive phrases (show)
- Take-Back Reviewer (443 deleted Reviews; avg. rating: 5.0)
- Overlapping Review History: reviewed 3 of 9 top products
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Deleted Reviews
We discovered a total of 20 deleted Reviews for this product, with an average rating of 4.2. 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 Unverified Purchases
23 of the 222 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 3.9 while the verified purchasers have rated this product an average of 2.8. 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.
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.
17 of the 222 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 4.4 while reviews that were not incentivized rated this product an average of 2.7. 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Fail Suspicious Reviewers
One-Hit Wonders
19 of the 222 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.1 while the reviewers who have posted more than one review have rated this product an average of 2.9. 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.
Take-Back Reviewers
36 of the 222 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 3.9 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 2.7. 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
3% also reviewed:
Slant Tweezers - 100% Lifetime Guarantee - Best... by Lush
2% also reviewed:
Amazon Prime Video by Amazon.com
2% also reviewed:
Alina Skin Care Award Winning &... by Alina Skin Care, Inc
2% also reviewed:
Wall Charger, 2 Pack OoRange Wall Charger... by OoRange
2% also reviewed:
Gardner Pet THE BEST Super-Absorbent 22 by 22... by Gardnerpet
2% also reviewed:
QuickFire, Instant Fire Starters. Waterproof,... by QuickFire
2% also reviewed:
The Muscle Stick Roller | Massage Roller for... by Fitness Answered Training
Does not include products
from the same brand
from the same brand
23 of the 222 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.9 while the reviewers who have a more unique product review history rated this product an average of 2.7. 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 Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
19 of the 222 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
-
- 48%
- 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 106 reviewers (or 48%) 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 Rating Trend
-
- 0%
- Created on high-volume days
We counted 222 reviews for this product over the span of 589 days, an average of 0.4 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 4 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 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 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 3.8, while the average ease score for reviewers in this category is 4.1.
3.8 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
3 of the 222 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.