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Nulaxy ノートパソコン スタンド ノートPCスタンド ラップトップ...
More product info From Nulaxy

87% of potentially unnatural reviews removed (why?)
Adjusted:
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Jump to Report Card

Report Card

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

Most Trusted Reviews

製品の作りは非常に良い... [Go to full review]
Jun 17, 2019      
73% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (1 deleted Review; avg. rating: 4.0)
  • Overrepresented Participation (posted 40 Reviews)
  • Critical Reviewer (avg. rating: 3.5)


Least Trusted Reviews

私のコンピュータを置い... [Go to full review]
Jun 24, 2019      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (43 words)
  • Overrepresented Participation (posted 2 Reviews)
  • 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 4.2. 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.

4.8 Product's Average Ease Score

4.2 Category's Average Ease Score


4.8
4.2


Read more about our Reviewer Ease test.


Fail Word Count Comparison
Word counts are approximated for Hanzi and Kanji


  • 84%
  • 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 3 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 89 reviews (or 84%) are within an overrepresented word count group. These reviews have rated this product an average of 4.9, while all other reviews have rated this product an average of 4.6. 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 reviews with an overrepresented word count

from reviews with a properly represented word count


4.9
4.6


Read more about our Word Count Comparison test.

Warn Rating Trend

  • 6%
  • Created over 1 day

We counted 106 reviews for this product over the span of 117 days, an average of 0.9 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.

However, we see the following 1 day exceeding this threshold:In total, we found that 6 reviews were created on just 1 day. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.

from reviews created on high volume days

from reviews created on normal volume days


5.0
4.9


Read more about our Rating Trend test.

Warn Reviewer Participation

  • 80%
  • 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 85 reviewers (or 80%) 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


4.9
5.0


Read more about our Reviewer Participation test.

Pass Unverified Purchases
  • 0%
  • Unverified Purchases
0 of the 106 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 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


4 of the 106 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


5.0
4.9


Single-Day Reviewers

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

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

Does not include products
from the same brand


30 of the 106 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
4.8


Read more about our Overlapping Review History 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.