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Dibea ロボット掃除機 D960 水拭き から拭き 強力吸引 自動充電 薄型 超静音...
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This report was last updated 5/12/2020.
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 Card
Pass Overall Grade
FAIL 
Deleted Reviews
Deleted ReviewsWARN Suspicious Reviewers
Suspicious ReviewersWARN Word Count Comparison
Word Count ComparisonWARN Reviewer Participation
Reviewer ParticipationPASS Rating Trend
Rating TrendPASS Unverified Purchases
Unverified PurchasesPASS Overlapping Review History
Overlapping Review HistoryPASS Reviewer Ease
Reviewer EasePASS Brand Repeats
Brand RepeatsN/A Phrase Repetition
Phrase RepetitionN/A Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
春に入ってから研究室だ... [Go to full review]
Jul 8, 2019
100%
TRUST
TRUST
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Verified Purchaser
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Take-Back Reviewer (1 deleted Review; avg. rating: 5.0) -
Easy Grader (avg. rating: 5.0)
Critical Reviewer (avg. rating: 3.8)
Least Trusted Reviews
We couldn't find any low-quality reviews
Analysis Details
Fail Deleted Reviews
Deleted Reviews
We discovered a total of 65 deleted Reviews for this product, with an average rating of 5. Even though deleted reviews don't affect the average rating, the fact that action was taken to delete reviews raises some red flags about the integrity of the reviews for the product as whole.
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.
5.0 average rating of deleted reviews
Warn Suspicious Reviewers
Suspicious Reviewers
One-Hit Wonders
34 of the 199 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.
Warn Word Count Comparison
Word Count Comparison
Word counts are approximated for Hanzi and Kanji
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- 95%
- 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 189 reviews (or 95%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn Reviewer Participation
Reviewer Participation
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- 49%
- 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 98 reviewers (or 49%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
Pass Rating Trend
Rating Trend
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- 3%
- Created over 1 day
We counted 199 reviews for this product over the span of 395 days, an average of 0.5 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 4 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 5 reviews were created on just 1 day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Unverified Purchases
Unverified Purchases
8 of the 199 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
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
2% also reviewed:
Anker PowerCore 10000 (10000mAh 大容量... by
1% also reviewed:
ブラウン オーラルB 電動歯ブラシ... by Braun (ブラウン)
1% also reviewed:
Syncwire iPhone 充電ケーブル【Apple... by Syncwire
1% also reviewed:
山崎実業 ゴミ袋ストッカー... by 山崎実業(Yamazaki)
1% also reviewed:
タンスのゲン 羽毛布団... by タンスのゲン
1% also reviewed:
Anker PowerCore Fusion 5000... by Anker
1% also reviewed:
ライトニング充電ケーブル... by PURIDEA
1% also reviewed:
iwoly V600 掃除機 サイクロン式 15KPa... by iwoly
1% also reviewed:
アイリスオーヤマ... by アイリスオーヤマ(IRIS OHYAMA)
13 of the 199 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 Ease
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 Brand Repeats
Brand Repeats
Brand Repeaters
2 of the 199 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
N/A Phrase Repetition
Phrase Repetition
We have not yet completed optimization for this test for Hanzi or Kanji.
N/A Incentivized Reviews
Incentivized Reviews
We have not yet completed optimization for this test for Hanzi or Kanji.