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【2016年モデル】フィリップス ソニッケアー ダイヤモンドクリーン...
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From Philips(フィリップス)
This report was last updated 8/9/2019.
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Report Card
Pass Overall Grade
FAIL Overlapping Review History
WARN Rating Trend
WARN Reviewer Participation
PASS Unverified Purchases
PASS Word Count Comparison
PASS Suspicious Reviewers
PASS Reviewer Ease
PASS Brand Repeats
PASS Deleted Reviews
N/A Phrase Repetition
N/A Incentivized Reviews
Most Trusted Reviews
惜しい... [Go to full review]
Mar 16, 2018
100%
TRUST
TRUST
- Unverified Purchaser
- Critical Reviewer (avg. rating: 3.1)
Least Trusted Reviews
ブラウン製を長く愛用し... [Go to full review]
Apr 23, 2018
5%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Repeater (3 of 132 reviews for this brand; avg rating: 4.3)
- Overlapping Review History: reviewed 1 of 9 top products
- Overrepresented Participation (posted 132 Reviews)
- Critical Reviewer (avg. rating: 4.1)
Analysis Details
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
12% also reviewed:
Amazonベーシック Apple認証... by Amazonベーシック(AmazonBasics)
9% 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)
8% also reviewed:
【Amazon.co.jp限定】 掃除機不要! ... by エムワールド(Emu-world)
8% also reviewed:
Jaybird X3 ワイヤレスイヤホン... by Jaybird(ジェイバード)
7% also reviewed:
HINCES 【amazon.co.jp限定】ラグ 洗える... by ヒンセス(HINCES)
7% also reviewed:
和平フレイズ タンブラー 630ml... by 和平フレイズ(Wahei freiz)
6% also reviewed:
SOLOVE 携帯扇風機 手持ち扇風機... by Solove
6% also reviewed:
全世界対応 変換プラグ 電源プラグ... by hyleton
Does not include products
from the same brand
from the same brand
86 of the 225 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.7 while the reviewers who have a more unique product review history 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.
Warn Rating Trend
-
- 34%
- Created over 13 days
We counted 225 reviews for this product over the span of 926 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.
However, we see the following 13 days exceeding this threshold:In total, we found that 76 reviews were created on just 13 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Reviewer Participation
-
- 43%
- 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 96 reviewers (or 43%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, the discrepancy in ratings between reviewers in an overrepresented participation groups and all other reviewers isn’t significant enough to rule out the possibility of it being due to random chance.
Pass Unverified Purchases
8 of the 225 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
-
- 26%
- 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 58 reviews (or 26%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Suspicious Reviewers
One-Hit Wonders
12 of the 225 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
3 of the 225 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
12 of the 225 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 225 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 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 4.2, 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
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.