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エンジニア 卓上導電マット A3サイズ 320×450×2mm ZCM-06
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From エンジニア(ENGINEER)
This report was last updated 2/28/2021.
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 126 Ratings, we counted 67 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 Brand Repeats
WARN Rating Trend
WARN Word Count Comparison
PASS Unverified Purchases
PASS Suspicious Reviewers
PASS Overlapping Review History
PASS Reviewer Participation
PASS Reviewer Ease
PASS Deleted Reviews
N/A Phrase Repetition
N/A Incentivized Reviews
Most Trusted Reviews
User did not leave written text for this review. [Go to full review]
Nov 20, 2020
73%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (0 words)
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 3.3)
- Easy Grader (avg. rating: 4.4)
Least Trusted Reviews
User did not leave written text for this review. [Go to full review]
Jun 26, 2016
43%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (0 words)
- Take-Back Reviewer (4 deleted Reviews; avg. rating: 4.5)
- Brand Repeater (2 of 85 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 4 of 9 top products
- Easy Grader (avg. rating: 4.4)
Analysis Details
Fail Brand Repeats
Brand Repeaters
18 of the 67 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Brand Loyalists
3 of the 67 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.
Warn Rating Trend
-
- 15%
- Created over 5 days
We counted 67 reviews for this product over the span of 2,966 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.
However, we see the following 5 days exceeding this threshold:In total, we found that 10 reviews were created on just 5 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
Warn Word Count Comparison
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 67 reviews (or 100%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Pass Unverified Purchases
4 of the 67 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
3 of the 67 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.
Never-Verified Reviewers
2 of the 67 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.
Take-Back Reviewers
11 of the 67 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.
Single-Day Reviewers
2 of the 67 reviewers have written multiple reviews but posted all of them on a single day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
6% also reviewed:
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4% also reviewed:
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4% also reviewed:
エレコム クリーナー... by エレコム
4% also reviewed:
ホーザン(HOZAN) アース線... by ホーザン(HOZAN)
4% also reviewed:
PLANEX 無線LAN子機 (USB3.0アダプター型)... by プラネックス
4% also reviewed:
BUFFALO USB3.0 外付けハードディスク... by バッファロー
4% also reviewed:
ドイツ Thermal Grizzly社製... by 親和産業
4% also reviewed:
アイネックス シルバーグリス AS-05 [... by AINEX
4% also reviewed:
シリコンパワー USBメモリ 256GB USB3.1... by シリコンパワー
19 of the 67 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
-
- 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.
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 4, while the average ease score for reviewers in this category is 4.2.
4.0 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
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:
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
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.