ZOYA Nail Polish, Nana
More product info
From ZOYA
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Report Card
Most Trusted Reviews
TRUST
- Unverified Purchaser
- Take-Back Reviewer (8 deleted Reviews; avg. rating: 4.9)
- Overlapping Review History: reviewed 2 of 9 top products
- Easy Grader (avg. rating: 4.3)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Overrepresented word count (5 words)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Repeater (2 of 5 reviews for this brand; avg rating: 5.0)
- Easy Grader (avg. rating: 5.0)
Analysis Details
We discovered a total of 1,718 deleted Reviews for this product, with an average rating of 4.2. 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.
Brand Repeaters
8 of the 20 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.
Brand Loyalists
1 of the 20 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.
Take-Back Reviewers
13 of the 20 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
4.5 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
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- 50%
- 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 10 reviews (or 50%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
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- 0%
- Created over 18 days
However, we see the following 18 days exceeding this threshold:
- 7 Reviews on Jan 21, 2016 (Avg. rating: 4.6)
- 6 Reviews on May 17, 2017 (Avg. rating: 4.8)
- 6 Reviews on Nov 9, 2015 (Avg. rating: 4.5)
- 6 Reviews on Jan 9, 2017 (Avg. rating: 4.3)
- 6 Reviews on Nov 2, 2015 (Avg. rating: 3.2)
- 5 Reviews on Sep 29, 2015 (Avg. rating: 5.0) Show All
Read more about our Rating Trend test.
1 of the 20 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.
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- 0%
- Used substantial repetitive phrases
Read more about our Phrase Repetition test.
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from the same brand
7 of the 20 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.
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- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
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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.