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【進化版 IPX7防水】TaoTronics ワイヤレス イヤホン Bluetooth 5.0 イヤホン...
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From TaoTronics
This report was last updated 10/13/2020.
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.co.jp claims 671 Ratings, we counted 386 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
Warn Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
FAIL Word Count Comparison
FAIL Overlapping Review History
WARN Rating Trend
WARN Brand Repeats
WARN Reviewer Participation
PASS Unverified Purchases
PASS Reviewer Ease
N/A Phrase Repetition
N/A Incentivized Reviews
Most Trusted Reviews
User did not leave written text for this review. [Go to full review]
Jan 11, 2020
59%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (0 words)
- Critical Reviewer (avg. rating: 2.3)
Least Trusted Reviews
User did not leave written text for this review. [Go to full review]
Aug 5, 2020
0%
TRUST
TRUST
- Unverified Purchaser
- Overrepresented word count (0 words)
- Overrepresented Participation (posted 2 Reviews)
- Critical Reviewer (avg. rating: 4.0)
Analysis Details
Fail Deleted Reviews
We discovered a total of 831 deleted Reviews for this product, with an average rating of 4.4. 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.
Fail Suspicious Reviewers
One-Hit Wonders
40 of the 386 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.
Never-Verified Reviewers
16 of the 386 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 3.1 while the reviewers who have written at least one verified purchase review rated this product an average of 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.
Take-Back Reviewers
62 of the 386 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 4.7 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 4.0. 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 Word Count Comparison
Word counts are approximated for Hanzi and Kanji
-
- 84%
- 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 325 reviews (or 84%) are within an overrepresented word count group. These reviews have rated this product an average of 4.0, while all other reviews have rated this product an average of 4.9. 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:
1% also reviewed:
Wellnice 外付けDVDドライブUSB 3.0 DVD... by Wellnice
1% also reviewed:
モバイルバッテリー 25000mAh 大容量... by RLERON
1% also reviewed:
Fire HD 10 タブレット... by Amazon
1% also reviewed:
【Qi認証済み/PSEマーク付き】DesertWest... by DesertWest
1% also reviewed:
【ガイド枠付き】 【2枚セット】... by
1% also reviewed:
極細 充電式 タッチペン タブレット... by MUOU
1% also reviewed:
SoundPEATS(サウンドピーツ) TrueFree+... by
1% also reviewed:
A-tion 電動バリカン ヒゲトリマー... by A-TION
1% also reviewed:
【2019最新型】外付け DVD ドライブ... by IGYLAR
28 of the 386 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 4.1. 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
-
- 10%
- Created over 7 days
We counted 386 reviews for this product over the span of 627 days, an average of 0.6 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 7 days exceeding this threshold:In total, we found that 38 reviews were created on just 7 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 Brand Repeats
Brand Loyalists
11 of the 386 reviewers have reviewed multiple products but half or more of their reviews are for this brand. While this is more Brand Loyalists than we'd expect to see, the discrepancy in ratings between the Brand Loyalists and non-loyalists isn't significant enough to rule out the possibility of it being due to random chance.
Warn Reviewer Participation
-
- 81%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 314 reviewers (or 81%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
48 of the 386 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 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 4.1, while the average ease score for reviewers in this category is 4.2.
4.1 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease 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.