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Superlux 密閉型 多目的ヘッドホン ブラック HD562 Black
More product info From Superlux

0% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Report Card

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

Most Trusted Reviews

4/5
User did not leave written text for this review. [Go to full review]
Jan 29, 2015      
100% TRUST
  • Unverified Purchaser
  • Easy Grader (avg. rating: 5.0)


Least Trusted Reviews

5/5
User did not leave written text for this review. [Go to full review]
Jun 24, 2015      
46% TRUST
  • Verified Purchaser
  • Overlapping Review History: reviewed 1 of 9 top products
  • Easy Grader (avg. rating: 5.0)


Analysis Details

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

14% also reviewed:
Bluedio T2S Turbine 2... by Bluedio



3 of the 14 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 3.2. 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


5.0
3.2


Read more about our Overlapping Review History test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 14 reviews for this product over the span of 1,796 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.

Pass Unverified Purchases

2 of the 14 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


2.5
3.8


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
Word counts are approximated for Hanzi and Kanji


  • 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.

Pass Suspicious Reviewers

One-Hit Wonders


1 of the 14 reviewers have only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from one-hit wonders

from reviewers with more than one review


1.0
3.8


Never-Verified Reviewers


1 of the 14 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from never-verified reviewers

from reviewers with at least one verified purchase review


1.0
3.8


Take-Back Reviewers

We didn't detect a substantial amount of Take-Back Reviewers.

Single-Day Reviewers

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

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.

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 3.6, while the average ease score for reviewers in this category is 4.2.

3.6 Product's Average Ease Score

4.2 Category's Average Ease Score


3.6
4.2


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters

We didn't detect a substantial amount of Brand Repeaters.

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 our Deleted Reviews test.

N/A Phrase Repetition
We have not yet completed optimization for this test for Hanzi or Kanji.

N/A Incentivized Reviews
We have not yet completed optimization for this test for Hanzi or Kanji.