Collistar Linea Uomo Doccia-Shampoo 3 in 1, Un gel doccia che deterge il corpo, lava i capelli,...
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.5)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Overrepresented word count (3 words)
- One-Hit Wonder
- Easy Grader (avg. rating: 5.0)
Analysis Details
One-Hit Wonders
Less than approximately 10% of reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 4.3 while the reviewers who have posted more than one review have rated this product an average of 1.9. 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.
Take-Back Reviewers
Approximately 20% of 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 0.7 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 2.5. 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.
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- ~45%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that approximately 45% are within an overrepresented word count group. These reviews have rated this product an average of 4.1, while all other reviews have rated this product an average of 0.7. 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.
(1.1/5)
(2.5/5)
(5.0/5)
Approximately 15% of reviews use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
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- <10%
- Created on high-volume days
Read more about our Rating Trend test.
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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.
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Approximately 25% of 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.
4.1 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
Less than approximately 10% of 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.
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- <10%
- 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.