Brilliant Hd - PRO - Teeth Whitening Kit - Improved Mouth Trays
More product info
From NuNutrients - Teeth Whitening
Refresh the report to view the most up-to-date data available:
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 4.0)
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- Never-Verified Reviewer
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
- Brand Repeater (2 of 8 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 4 of 9 top products
- Overrepresented Participation (posted 8 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
We discovered a total of 880 deleted Reviews for this product, with an average rating of 4.8. 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.
-
- 30%
- Created over 16 days
We counted 425 reviews for this product over the span of 1,033 days, an average of 0.4 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 16 days exceeding this threshold:In total, we found that 127 reviews were created on just 16 days. The reviews on these high volume days have rated this product an average of 4.6 while reviews from other days have 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.
245 of the 425 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.6 while the verified purchasers have rated this product an average of 2.9. 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.
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.
Never-Verified Reviewers
86 of the 425 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.8 while the reviewers who have written at least one verified purchase review 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.
Take-Back Reviewers
164 of the 425 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 4.3 while the reviewers who don't have any deleted reviews in their history have 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.
-
- 24%
- 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 102 reviews (or 24%) are within an overrepresented word count group. These reviews have rated this product an average of 4.4, while all other reviews have rated this product an average of 3.7. 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.
(4.2/5)
(4.8/5)
(4.9/5)
(5.0/5)
(4.7/5)
(5.0/5)
(4.9/5)
(5.0/5)
(5.0/5)
(4.7/5)
51 of the 425 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.4 while reviews without substantial repetitive phrases rated this product an average of 3.8. 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.
30% also reviewed:
NuNutrients Advanced Hair Regrowth Treatment for... by NuNutrients
16% also reviewed:
Vivalife Garcinia Cambogia Extract - 95% HCA -... by Vivalife
13% also reviewed:
Alpha Garcinia Cambogia by Alpha
13% also reviewed:
Active Wow Eye Gel by Active Wow
12% also reviewed:
Shine Whitening - Zero Peroxide Teeth Whitening... by Shine Whitening
12% also reviewed:
Active Wow Black Mask Peel - Activated Charcoal... by Active Wow
11% also reviewed:
Omegaboost Digestive Cleanser (120 Capsules) - #1... by Omegaboost
11% also reviewed:
Shine Whitening Teeth Whitening Kit Bundle with 2... by Shine Whitening
from the same brand
156 of the 425 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 3.3. 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.
-
- 50%
- 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 212 reviewers (or 50%) 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.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
74 of the 425 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.
11 of the 425 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.