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hreg-zp-1214
More product info From Acedining


Rating:
1,945 Reviews
100% of potentially unnatural reviews removed (Why?)
Adjusted:
Insufficient trustworthy reviews



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Last Updated: Dec 22, 2018
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Note: While Amazon.com claims 1,945 reviews, we counted 1,937 available on their site.

Report Card

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

Most Trusted Reviews

We couldn't find any quality reviews

Least Trusted Reviews

It Is easy to put on. No air bubbles and ... [Go to full review]
Dec 20, 2018      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Overrepresented word count (55 words)
  • Contains repetitive phrases (show)
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Dec 20, 2018)
  • Take-Back Reviewer (1 deleted review; avg. rating: 5.0)
  • Brand Repeater (63 of 230 reviews for this brand; avg rating: 5.0)
  • Overlapping Review History: reviewed 6 of 9 top products
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Unverified Purchases

1,936 of the 1,937 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 5.0 while the verified purchasers have rated this product an average of 1.0. 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


5.0
1.0


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 Suspicious Reviewers

Never-Verified Reviewers


1,206 of the 1,937 reviewers have never written a verified purchase review. This is an excessively large percentage of Never-Verified Reviewers which may indicate unnatural reviews.

from never-verified reviewers

from reviewers with at least one verified purchase review


5.0
5.0


Take-Back Reviewers


64 of the 1,937 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from take-back reviewers

from reviewers without previously deleted reviews


5.0
5.0


Single-Day Reviewers


670 of the 1,937 reviewers have written multiple reviews but posted all of them on a single day. This is an excessively large percentage of Single-Day Reviewers which may indicate unnatural reviews.

from single-day reviewers

from non-single-day reviewers


5.0
5.0


Read more about our Suspicious Reviewers 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 4.9, 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.

4.9 Product's Average Ease Score

4.3 Category's Average Ease Score


4.9
4.3


Read more about our Reviewer Ease test.


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

64% also reviewed:
Lsb-zp-B-1220 by ChefzBest

Does not include products
from the same brand


1,936 of the 1,937 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 5.0 while the reviewers who have a more unique product review history rated this product an average of 1.0. 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


5.0
1.0


Read more about our Overlapping Review History test.

Warn Deleted Reviews

We discovered a total of 8 deleted reviews for this product, with an average rating of 5. 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:
  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.

5.0 average rating of deleted reviews

5.0


Show distribution of deleted reviews

Warn Rating Trend

  • 82%
  • Created over 1 day

We counted 1,937 reviews for this product over the span of 2 days, an average of 968.5 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1028 or fewer reviews on any given day.

However, we see the following 1 day exceeding this threshold:In total, we found that 1,585 reviews were created on just 1 day. This is an excessively high number of reviews submitted on these high volume days.

from reviews created on high volume days

from reviews created on normal volume days


5.0
5.0


Read more about our Rating Trend test.

Warn Word Count Comparison

  • 94%
  • 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 1,827 reviews (or 94%) 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


5.0
5.0


Read more about our Word Count Comparison test.

Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.

Common Phrases in Reviews:
122 reviews
(5.0/5)
62 reviews
(5.0/5)
269 reviews
(5.0/5)
213 reviews
(5.0/5)
127 reviews
(5.0/5)
41 reviews
(5.0/5)
51 reviews
(5.0/5)
91 reviews
(5.0/5)
67 reviews
(5.0/5)
39 reviews
(5.0/5)
Show MoreShow Less
Common Phrases in Titles:
258 reviews
(5.0/5)
55 reviews
(5.0/5)
43 reviews
(5.0/5)
43 reviews
(5.0/5)
32 reviews
(5.0/5)
26 reviews
(5.0/5)
25 reviews
(5.0/5)
37 reviews
(5.0/5)
63 reviews
(5.0/5)
Show MoreShow Less


403 of the 1,937 total reviews for this product use substantial repetitive phrases between them. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


5.0
5.0


Read more about our Phrase Repetition test.

Pass Reviewer Participation

  • 0%
  • From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.

Pass Brand Repeats

Brand Repeaters


39 of the 1,937 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.

from Brand Repeaters

from Non-Repeaters


5.0
5.0


Read more about our Brand Repeats test.

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


7 of the 1,937 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.

from incentivized reviews

from non-incentivized reviews


5.0
5.0


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.


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