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Mpow Muze Bluetooth 4.0 Headphones Wireless Earphones with Active Noise Reduction Cancelling, Built... From Mpow Report Feedback

Pass Reviews appear natural

Original:

219 Reviews

Adjusted:

175 Reviews

Rank in: DJ Equipment
5%
11%

View/Edit Adjustment
How is this calculated
Report Last Updated: Dec 9, 2017
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Report Card

Click a test to jump to details

FAIL Suspicious Reviewers
WARN Rating Trend
WARN Phrase Repetition
WARN Reviewer Participation
PASS Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Skewed Helpfulness
PASS Incentivized Reviews
PASS Deleted Reviews
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Most Trusted Reviews

It's is very good I love it good soundi give ... [Go to full review]
Mar 16, 2015      
100% TRUST
  • Verified Purchaser
  • Brand Repeater (2 of 35 reviews for this brand; avg rating: 5.0)
  • Critical Reviewer (avg. rating: 3.9)


Least Trusted Reviews

I have the Bose QuietComfort 15 that I got as ... [Go to full review]
Jul 2, 2016      
35% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Contains repetitive phrases (show)
  • Single-Day Reviewer (posted all reviews on Jul 2, 2016)
  • Brand Loyalist (2 of 4 reviews for this brand; avg rating: 3.0)
  • Overrepresented Participation (posted 4 reviews)
  • Critical Reviewer (avg. rating: 2.5)


Analysis Details

Note: While Amazon claims 219 reviews, we counted 220 available on their site.

Fail Suspicious Reviewers

Take-Back Reviewers


23 of the 220 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.

from take-back reviewers

from reviewers without previously deleted reviews


3.9
3.6


Single-Day Reviewers


48 of the 220 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.

from single-day reviewers

from non-single-day reviewers


3.5
3.7


Read more about our Suspicious Reviewers test.

Warn Rating Trend

  • 6%
  • Created over 3 days

We counted 220 reviews for this product over the span of 963 days, an average of 0.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.

However, we see the following 3 days exceeding this threshold:In total, we found that 13 reviews were created on just 3 days. 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.

from reviews created on high volume days

from reviews created on normal volume days


3.2
3.7


Read more about our Rating Trend test.

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:
6 reviews
(2.7%)
10 reviews
(4.5%)
9 reviews
(4.1%)
11 reviews
(5.0%)
2 reviews
(0.9%)
2 reviews
(0.9%)
11 reviews
(5.0%)
12 reviews
(5.5%)
5 reviews
(2.3%)
Show MoreShow Less
Common Phrases in Titles:
7 reviews
(3.2%)
6 reviews
(2.7%)
2 reviews
(0.9%)
3 reviews
(1.4%)
3 reviews
(1.4%)
3 reviews
(1.4%)
2 reviews
(0.9%)
Show MoreShow Less


62 of the 220 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


3.8
3.6


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 70%
  • From reviewers with an overrepresented participation

We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 154 reviewers (or 70%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


3.6
3.8


Read more about our Reviewer Participation test.

Pass Unverified Purchases

20 of the 220 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.

from unverified purchasers

from verified purchases


4.0
3.6


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

  • 19%
  • 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 41 reviews (or 19%) 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


3.6
3.6


Read more about our Word Count Comparison test.

Pass Overlapping Review History
Does not include products
from the same brand


15 of the 220 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.0
3.6


Read more about our Overlapping Review History 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 3.9, while the average ease score for reviewers in this category is 4.2.

3.9 Product's Average Ease Score

4.2 Category's Average Ease Score


3.9
4.2


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


20 of the 220 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.

from Brand Repeaters

from Non-Repeaters


4.0
3.6


Read more about our Brand Repeats test.

Pass Skewed Helpfulness
We examined the average net helpfulness score of negative reviews against the average net helpfulness score of positive reviews. The net helpfulness score is the number of times a review has been marked as helpful minus the number of times a review has been marked as unhelpful. We could not find any statistically significant difference in average net helpfulness score between the negative reviews and positive reviews.

6.2 average net helpfulness for positive reviews

1.2 average net helpfulness for negative reviews


Read more about our Skewed Helpfulness test.


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.


5 of the 220 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from incentivized reviews

from non-incentivized reviews


4.2
3.6


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.

Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.
Read more about our Deleted Reviews test.