Sonic Facial Cleansing Brush,Rosmax IPX6 Waterproof Wireless Charging Face Cleaning Brush,with 3...
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From Rosmax
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (1060 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.9)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Overrepresented word count (114 words)
- Take-Back Reviewer (115 deleted Reviews; avg. rating: 4.6)
- Overlapping Review History: reviewed 4 of 9 top products
- Overrepresented Participation (posted 95 Reviews)
- Easy Grader (avg. rating: 4.7)
Analysis Details
One-Hit Wonders
3 of the 161 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.7 while the reviewers who have posted more than one review have 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.
Take-Back Reviewers
63 of the 161 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 4.8 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 4.3. 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
Read more about our Reviewer Ease test.
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- 61%
- 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 3 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 98 reviews (or 61%) are within an overrepresented word count group. These reviews have rated this product an average of 4.7, while all other reviews have 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.
36% also reviewed:
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30% also reviewed:
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29% also reviewed:
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from the same brand
114 of the 161 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.9 while the reviewers who have a more unique product review history rated this product an average of 3.6. 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.
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- 26%
- 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 42 reviewers (or 26%) are within an overrepresented participation group. These reviews have rated this product an average of 4.8, 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.
(5.0/5)
(5.0/5)
(4.8/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(4.2/5)
(5.0/5)
(5.0/5)
36 of the 161 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
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- 4%
- Created over 1 day
We counted 161 reviews for this product over the span of 223 days, an average of 0.7 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 6 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.
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- 0%
- Unverified Purchases
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.
Brand Repeaters
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- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
- 0
- Reviews have been deleted
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.