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Self Defense Stun Gun Flashlight 1101 Police Rechargeable Electric Shock Tourch Stun Gun With LED... From inweie Report Feedback

Fail Unnatural reviews detected

Original:

27 Reviews

Adjusted:

4 Reviews

13%
3%

View/Edit Adjustment
How is this calculated
Last Updated: 2/16/2017
Update Available
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Report Card

Click a test to jump to details

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

Most Trusted Reviews

This is a dual purpose item that provides both illumination ... [Go to full review]
Nov 8, 2016      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 4.1)


Least Trusted Reviews

This item came from China which at first was a ... [Go to full review]
Aug 4, 2016      
0% TRUST
  • Unverified Purchaser
  • Admitted to receiving an incentive
  • Contains repetitive phrases (show)
  • Never-Verified Reviewer
  • Easy Grader (avg. rating: 4.4)


Analysis Details

Note: While Amazon claims 27 reviews, we counted 52 available on their site.

Fail Unverified Purchases

48 of the 52 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.1 while the verified purchasers 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.

from unverified purchasers

from verified purchases


4.1
2.5


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


8 of the 52 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.6 while the reviewers who have written at least one verified purchase review rated this product an average of 3.9. 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.

from never-verified reviewers

from reviewers with at least one verified purchase review


4.6
3.9


Take-Back Reviewers


29 of the 52 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.

from take-back reviewers

from reviewers without previously deleted reviews


3.8
4.2


Read more about our Suspicious Reviewers test.

Fail Word Count Comparison

  • 31%
  • 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 16 reviews (or 31%) 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 3.8. 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.4
3.8


Read more about our Word Count Comparison 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.


34 of the 52 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


4.1
3.7


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 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:
3 reviews
(5.8%)
3 reviews
(5.8%)
3 reviews
(5.8%)
2 reviews
(3.8%)
6 reviews
(11.5%)
2 reviews
(3.8%)
2 reviews
(3.8%)
5 reviews
(9.6%)
2 reviews
(3.8%)
Show MoreShow Less


18 of the 52 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


3.9
4.0


Read more about our Phrase Repetition test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 52 reviews for this product over the span of 113 days, an average of 0.5 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. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.

Pass Overlapping Review History


25 of the 52 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


3.9
4.0


Read more about our Overlapping Review History 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 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 4.4, while the average ease score for reviewers in this category is 4.4.

4.4 Product's Average Ease Score

4.4 Category's Average Ease Score


4.4
4.4


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters

We didn't detect a substantial amount of Brand Repeaters.

Pass Skewed Helpfulness
We examined the average net helpfulness score of negative reviews against the average net helpfulness score of positive reviews. The net helpfulness score is the number of times a review has been marked as helpful minus the number of times a review has been marked as unhelpful. We could not find any statistically significant difference in average net helpfulness score between the negative reviews and positive reviews.

0.0 average net helpfulness for positive reviews

0.0 average net helpfulness for negative reviews


Read more about our Skewed Helpfulness test.


Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.
Read more about our Deleted Reviews test.