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【2019最新版 3in1機能】携帯扇風機 小型 静音 USB扇風機 KYOKA 手持ち扇風機...
More product info From KYOKA

Amazon Reviews for  【2019最新版 3in1機能】携帯扇風機 小型 静音 USB扇風機 KYOKA 手持ち扇風機 7枚羽根 手持ち式ファン 3段階風量調節 スタンド機能付き 持ち運び便利 卓上扇風機 クリップ式 熱中症対策 旅行 花火大会 会社 野球観戦 (ブラック)
Rating:
150 Ratings
150 Reviews
("Ratings" vs. "Reviews")
73% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Report Card

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

Most Trusted Reviews

見た目がニャンコの耳が... [Go to full review]
Apr 21, 2019      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (1 deleted Review; avg. rating: 3.0)
  • Brand Repeater (3 of 23 reviews for this brand; avg rating: 5.0)
  • Critical Reviewer (avg. rating: 3.0)


Least Trusted Reviews

USBで簡単充電... [Go to full review]
Jun 2, 2019      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Overlapping Review History: reviewed 1 of 9 top products
  • Overrepresented Participation (posted 6 Reviews)
  • Critical Reviewer (avg. rating: 4.2)


操作も簡単で... [Go to full review]
May 1, 2019      
0% TRUST
  • Verified Purchaser
  • Overrepresented word count (41 words)
  • Brand Loyalist (3 of 6 reviews for this brand; avg rating: 4.7)
  • Overlapping Review History: reviewed 2 of 9 top products
  • Overrepresented Participation (posted 6 Reviews)
  • Critical Reviewer (avg. rating: 3.8)

スマホをとりつけられる... [Go to full review]
May 28, 2019      
0% TRUST
  • Verified Purchaser
  • Overrepresented Participation (posted 2 Reviews)
  • Critical Reviewer (avg. rating: 2.5)

最近話題になっているモ... [Go to full review]
May 16, 2019      
0% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (7 deleted Reviews; avg. rating: 5.0)
  • Brand Repeater (2 of 152 reviews for this brand; avg rating: 5.0)
  • Overlapping Review History: reviewed 3 of 9 top products
  • Easy Grader (avg. rating: 5.0)

注文してからすぐ届きま... [Go to full review]
May 15, 2019      
0% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
  • Overlapping Review History: reviewed 3 of 9 top products
  • Easy Grader (avg. rating: 4.4)

充電しておけばいつでも... [Go to full review]
Apr 14, 2019      
0% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
  • Brand Repeater (2 of 11 reviews for this brand; avg rating: 5.0)
  • Overlapping Review History: reviewed 2 of 9 top products
  • Easy Grader (avg. rating: 4.6)


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 4.6, 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.

4.6 Product's Average Ease Score

4.2 Category's Average Ease Score


4.6
4.2


Read more about our Reviewer Ease test.


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

5% also reviewed:
... by Joyhouse

Does not include products
from the same brand


54 of the 150 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.8 while the reviewers who have a more unique product review history rated this product an average of 4.5. 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 reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.8
4.5


Read more about our Overlapping Review History test.

Warn Rating Trend

  • 10%
  • Created over 2 days

We counted 150 reviews for this product over the span of 115 days, an average of 1.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.

However, we see the following 2 days exceeding this threshold:In total, we found that 15 reviews were created on just 2 days. 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


4.7
4.6


Read more about our Rating Trend test.

Warn Suspicious Reviewers

One-Hit Wonders


22 of the 150 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from one-hit wonders

from reviewers with more than one review


4.3
4.7


Read more about our Suspicious Reviewers test.

Warn Reviewer Participation

  • 69%
  • 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 104 reviewers (or 69%) 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


4.7
4.5


Read more about our Reviewer Participation test.

Pass Unverified Purchases

14 of the 150 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.

from unverified purchasers

from verified purchases


4.8
4.6


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


  • 29%
  • 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 44 reviews (or 29%) 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.7
4.6


Read more about our Word Count Comparison 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.