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ADICCO 枕 安眠 人気 肩こり 低反発枕 高通気性 呼吸が楽 肩こり対策マクラ...
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From ADICCO
This report was last updated 7/17/2019.
Refresh the report to view the most up-to-date data available:
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Report Card
Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
FAIL Overlapping Review History
WARN Rating Trend
PASS Unverified Purchases
PASS Reviewer Participation
PASS Brand Repeats
PASS Deleted Reviews
N/A Phrase Repetition
N/A Incentivized Reviews
Most Trusted Reviews
頭部の手術をし... [Go to full review]
May 21, 2019
75%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (75 words)
- Critical Reviewer (avg. rating: 4.1)
Least Trusted Reviews
コスパが良かって感じた... [Go to full review]
Apr 17, 2019
0%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (42 words)
- Take-Back Reviewer (5 deleted Reviews; avg. rating: 5.0)
- Overlapping Review History: reviewed 4 of 9 top products
- Easy Grader (avg. rating: 4.9)
Analysis Details
Fail Suspicious Reviewers
One-Hit Wonders
1 of the 142 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 1.0 while the reviewers who have posted more than one review have rated this product an average of 4.7. 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.
Never-Verified Reviewers
1 of the 142 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 1.0 while the reviewers who have written at least one verified purchase review rated this product an average of 4.7. 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.
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 4.7, 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.
4.7 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
Word counts are approximated for Hanzi and Kanji
-
- 62%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 88 reviews (or 62%) 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 4.4. 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
13% also reviewed:
Gaosa イヤホン 最新版Bluetooth5.0... by Gaosa
7% also reviewed:
Kimitech ハンディクリーナー ハンド... by Kimitech
6% also reviewed:
【進化版 3600mAh IPX7完全防水】Bluetooth... by Hihiccup
6% also reviewed:
【2019進化版 金属仕様... by Sekuret
5% also reviewed:
[進化版 IPX5完全防水] 白 Bluetooth... by iHarbort
5% also reviewed:
【Bluetooth5.0 自動ペアリング】Bluetooth... by Dycsin
4% also reviewed:
【光デジタル接続 aptX-LL低遅延... by TaoTronics
4% also reviewed:
【令和第2世代 USB充電式... by ENACFIRE
4% also reviewed:
目覚まし時計 光 目覚ましライト... by RegeMoudal
47 of the 142 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 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.
Warn Rating Trend
-
- 6%
- Created over 1 day
We counted 142 reviews for this product over the span of 103 days, an average of 1.4 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 7 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 8 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.
Pass Unverified Purchases
4 of the 142 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 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 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:
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.