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Petunia Skincare Stainless Steel Eyebrow Tweezers Slant Tip Professional Grade & Sharp Tips...
More product info From Petunia Skincare Report Feedback


Rating:
69 Reviews
100% of potentially unnatural reviews removed (Why?)
Adjusted:
Insufficient trustworthy reviews



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Report Info:
Last Updated: Nov 1, 2016
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Note: While Amazon.com claims 69 reviews, we counted 262 available on their site.
Note: While we've examined all 262 reviews, our reviewer analysis is based on a sample of 254 reviewers.

Report Card

Fail Overall Grade
FAIL Unverified Purchases
FAIL Reviewer Ease
FAIL Overlapping Review History
WARN Rating Trend
WARN Incentivized Reviews
WARN Brand Repeats
WARN Word Count Comparison
WARN Phrase Repetition
PASS Suspicious Reviewers
PASS Reviewer Participation
PASS Deleted Reviews

Most Trusted Reviews

We couldn't find any quality reviews

Least Trusted Reviews

We weren't all born with perfect brows. Some of us ... [Go to full review]
Oct 2, 2015     0 of 1 found this helpful.  
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Overrepresented word count (150 words)
  • Admitted to receiving an incentive
  • Contains repetitive phrases (show)
  • Take-Back Reviewer (415 deleted reviews; avg. rating: 5.0)
  • Brand Repeater (2 of 306 reviews for this brand; avg rating: 5.0)
  • Overlapping Review History: reviewed 2 of 9 top products
  • Easy Grader (avg. rating: 4.9)


Analysis Details

Fail Unverified Purchases

253 of the 262 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.8 while the verified purchasers 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.

from unverified purchasers

from verified purchases


4.8
4.3


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.

Fail 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 4.7, while the average ease score for reviewers in this category is 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.

4.7 Product's Average Ease Score

4.3 Category's Average Ease Score


4.7
4.3


Read more about our Reviewer Ease test.


Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

Does not include products
from the same brand


213 of a random sample of 254 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 4.7. 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.9
4.7


Read more about our Overlapping Review History test.

Warn Rating Trend

from reviews created on high volume days

from reviews created on normal volume days


4.8
4.8


Read more about our Rating Trend test.

Warn Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.


236 of the 262 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is an excessively large percentage of incentivized reviews which may indicate unnatural reviews.

from incentivized reviews

from non-incentivized reviews


4.8
4.7


Read more about our Incentivized Reviews test, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.

Warn Brand Repeats

Brand Repeaters


128 of a random sample of 254 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.

from Brand Repeaters

from Non-Repeaters


4.9
4.8


Read more about our Brand Repeats test.

Warn Word Count Comparison

  • 85%
  • 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 223 reviews (or 85%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.8
4.7


Read more about our Word Count Comparison test.

Warn Phrase Repetition


130 of the 262 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.9
4.8


Read more about our Phrase Repetition test.

Pass Suspicious Reviewers

One-Hit Wonders


1 of a random sample of 254 reviewers has only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from one-hit wonders

from reviewers with more than one review


5.0
4.8


Never-Verified Reviewers


8 of a random sample of 254 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from never-verified reviewers

from reviewers with at least one verified purchase review


4.9
4.8


Take-Back Reviewers

We didn't detect a substantial amount of Take-Back Reviewers.

Single-Day Reviewers

We didn't detect a substantial amount of Single-Day Reviewers.

Pass Reviewer Participation

  • 22%
  • 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 56 of our sample of 254 reviewers (or 22%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.8
4.8


Read more about our Reviewer Participation test.

Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.

There are a few limitations to keep in mind regarding the Deleted Reviews test:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about the Deleted Reviews test here.


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