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UPERFECT 4K 12.5インチ モバイルモニター...
More product info From UPERFECT

Amazon Reviews for  UPERFECT 4K 12.5インチ モバイルモニター 超薄型/adobe100色域/4K(3840×2160)/HDR対応/HDMI×2/mini DP Nintendo Switch/Xbox/PS4対応 UHD ディスプレイ
Rating:
30 Ratings
30 Reviews
("Ratings" vs. "Reviews")
3% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Report Card

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

Most Trusted Reviews

nnnnnnnn... [Go to full review]
Oct 17, 2019      
100% TRUST
  • Verified Purchaser

Reviewer data not yet gathered.


Least Trusted Reviews

nnnnnnnn... [Go to full review]
Sep 16, 2019      
19% TRUST
  • Verified Purchaser
  • Brand Repeater (2 of 10 reviews for this brand; avg rating: 5.0)
  • Overrepresented Participation (posted 10 Reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Deleted Reviews

We discovered a total of 11 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:
  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.

5.0 average rating of deleted reviews

5.0


Show distribution of deleted reviews

Warn Brand Repeats

Brand Loyalists


1 of the 30 reviewers have reviewed multiple products but half or more of their reviews are for this brand. While this is more Brand Loyalists than we'd expect to see, the discrepancy in ratings between the Brand Loyalists and non-loyalists isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Loyalists

from Non-Loyalists


5.0
4.4


Read more about our Brand Repeats test.

Warn Suspicious Reviewers

One-Hit Wonders


6 of the 30 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, the discrepancy in ratings between the One-Hit Wonders and reviewers who have posted more than one review isn't significant enough to rule out the possibility of it being due to random chance.

from one-hit wonders

from reviewers with more than one review


4.8
4.3


Read more about our Suspicious Reviewers test.

Warn Reviewer Participation

  • 53%
  • 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 16 reviewers (or 53%) 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


4.5
4.4


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 30 reviews for this product over the span of 167 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. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.

Pass Unverified Purchases
  • 0%
  • Unverified Purchases
0 of the 30 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.
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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

7% also reviewed:
APEMAN 前後2カメラ... by apeman

Does not include products
from the same brand


8 of the 30 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


5.0
4.2


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 4.4, while the average ease score for reviewers in this category is 4.2. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.

4.4 Product's Average Ease Score

4.2 Category's Average Ease Score


4.4
4.2


Read more about our Reviewer Ease 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.