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MP3 Player, 16GB MP3 Player with Bluetooth 4.2, MP3 Direct Recording, Hi-Fi Lossless Sound Music...
More product info From MUSBOY


Rating:
145 Reviews
83% of potentially unnatural reviews removed (Why?)
Adjusted:
Jump to Report Card


Report Card

Fail Overall Grade
FAIL Reviewer Ease
WARN Rating Trend
WARN Word Count Comparison
WARN Phrase Repetition
WARN Overlapping Review History
PASS Unverified Purchases
PASS Suspicious Reviewers
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
N/A Reviewer Participation

Most Trusted Reviews

Comes with a lot, comfortable on your arm, stays in ... [Go to full review]
Sep 24, 2019      
100% TRUST
  • Verified Purchaser


Least Trusted Reviews

 Its a great product. The music quality is great. It ... [Go to full review]
Oct 1, 2019      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (91 words)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

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 4.8, 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.

4.8 Product's Average Ease Score

4.1 Category's Average Ease Score


4.8
4.1


Read more about our Reviewer Ease test.


Warn Rating Trend
It appears that several reviews were created during just a short period of time.
Read more about our Rating Trend test.

Warn Word Count Comparison

  • ~35%
  • 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 approximately 35% are within an overrepresented word count group. While this is more reviews from overrepresented word count groups than we'd expect to see, the discrepancy in ratings between reviews with overrepresented word groups and all other reviews isn’t significant enough to rule out the possibility of it being due to random chance.

from reviews with an overrepresented word count

from reviews with a properly represented word count


5.0
4.8


Read more about our Word Count Comparison 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:
~4% of reviews
(5.0/5)
~4% of reviews
(4.5/5)
~6% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
~6% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
Show MoreShow Less
Common Phrases in Titles:
~11% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
~4% of reviews
(5.0/5)
Show MoreShow Less


Approximately 30% of reviews use substantial repetitive phrases between them. While this is more than we'd expect to see, the discrepancy in ratings between the these reviews and reviews without substantial repetitive phrases isn't significant enough to rule out the possibility of it being due to random chance.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


5.0
4.9


Read more about our Phrase Repetition test.

Warn Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

Does not include products
from the same brand


Approximately 55% of 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


5.0
4.8


Read more about our Overlapping Review History test.

Pass Unverified Purchases

4 of the 145 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


N/A
4.9


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 Suspicious Reviewers

One-Hit Wonders

We didn't detect a substantial amount of One Hit Wonders.

Never-Verified Reviewers

We didn't detect a substantial amount of Never-Verified Reviewers.

Take-Back Reviewers


Approximately 20% of reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from take-back reviewers

from reviewers without previously deleted reviews


4.9
4.9


Single-Day Reviewers

We didn't detect a substantial amount of Single-Day Reviewers.

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.

  • <10%
  • 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, 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.

There are a few limitations to keep in mind regarding the Deleted Reviews test:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about the Deleted Reviews test here.

N/A Reviewer Participation
We haven't collected sufficient data to run this test yet. See more