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This report was last updated 10/24/2020.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.co.jp claims 0 Ratings, we counted 95 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL
Suspicious Reviewers
![](/public/imgs/reviewmeta/su-icon.png)
WARN
Word Count Comparison
![](/public/imgs/reviewmeta/wc-icon.png)
PASS
Rating Trend
![](/public/imgs/reviewmeta/rt-icon.png)
PASS
Unverified Purchases
![](/public/imgs/reviewmeta/vp-icon.png)
PASS
Overlapping Review History
![](/public/imgs/reviewmeta/rh-icon.png)
PASS
Reviewer Participation
![](/public/imgs/reviewmeta/ex-icon.png)
PASS
Reviewer Ease
![](/public/imgs/reviewmeta/sc-icon.png)
PASS
Brand Repeats
![](/public/imgs/reviewmeta/re-icon.png)
PASS
Deleted Reviews
![](/public/imgs/reviewmeta/dl-icon.png)
N/A
Phrase Repetition
![](/public/imgs/reviewmeta/pr-icon.png)
N/A
Incentivized Reviews
![](/public/imgs/reviewmeta/ic-icon.png)
Most Trusted Reviews
User did not leave written text for this review. [Go to full review]
Apr 13, 2020
73%
TRUST
TRUST
-
Verified Purchaser
-
Overrepresented word count (0 words)
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Take-Back Reviewer (3 deleted Reviews; avg. rating: 3.7)
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Overlapping Review History: reviewed 1 of 9 top products
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Critical Reviewer (avg. rating: 4.1)
Least Trusted Reviews
We couldn't find any low-quality reviews
Analysis Details
Fail
Suspicious Reviewers
![](/public/imgs/reviewmeta/su-icon.png)
Never-Verified Reviewers
6 of the 95 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 5.0 while the reviewers who have written at least one verified purchase review rated this product an average of 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.
Warn
Word Count Comparison
![](/public/imgs/reviewmeta/wc-icon.png)
Word counts are approximated for Hanzi and Kanji
-
- 100%
- 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 95 reviews (or 100%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Pass
Rating Trend
![](/public/imgs/reviewmeta/rt-icon.png)
-
- 0%
- Created on high-volume days
We counted 95 reviews for this product over the span of 409 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.
Read more about our Rating Trend test.
Pass
Unverified Purchases
![](/public/imgs/reviewmeta/vp-icon.png)
21 of the 95 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
Overlapping Review History
![](/public/imgs/reviewmeta/rh-icon.png)
Reviewers of this product have ALSO reviewed the following products:
23% also reviewed:
[アイシャツ] i-shirt... by i-Shirt(アイシャツ)
17% also reviewed:
... by プリマソーレ(primasole)
12% also reviewed:
3M セキュアフィット 保護めがね... by スリーエム(3M)
11% also reviewed:
(正規品) フィリップス ソニッケアー... by Philips(フィリップス)
11% also reviewed:
ゼブラ 油性ボールペン ブレン 0.5... by ゼブラ(ZEBRA)
9% also reviewed:
... by ザムスト(ZAMST)
9% also reviewed:
ゼブラ 油性ボールペン... by ゼブラ(ZEBRA)
8% also reviewed:
全世界対応 変換プラグ 電源プラグ... by hyleton
8% also reviewed:
【Amazon限定ブランド】... by モアプレッシャー(More Pressure)
28 of the 95 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.
Pass
Reviewer Participation
![](/public/imgs/reviewmeta/ex-icon.png)
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- 18%
- 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 17 reviewers (or 18%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass
Reviewer Ease
![](/public/imgs/reviewmeta/sc-icon.png)
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 4.2, while the average ease score for reviewers in this category is 4.2.
4.2 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass
Brand Repeats
![](/public/imgs/reviewmeta/re-icon.png)
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
Pass
Deleted Reviews
![](/public/imgs/reviewmeta/dl-icon.png)
- 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:
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- 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.
- We have no information on reviews that were never published in the first place.
- 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.
N/A
Phrase Repetition
![](/public/imgs/reviewmeta/pr-icon.png)
We have not yet completed optimization for this test for Hanzi or Kanji.
N/A
Incentivized Reviews
![](/public/imgs/reviewmeta/ic-icon.png)
We have not yet completed optimization for this test for Hanzi or Kanji.