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Vansky® Bias Lighting TV Backlight for HDTV LED Strips Led Lights Home Multi Color RGB LED... From Vansky Report Feedback

Pass Reviews appear natural

Original:

177 Reviews

Adjusted:

157 Reviews

Rank in: Remote Controls
77%
82%

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

Click a test to jump to details

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

The backing is a bit hard to take off and ... [Go to full review]
Mar 15, 2017      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 4.3)


Least Trusted Reviews

We couldn't find any low-quality reviews

Analysis Details


Fail Deleted Reviews

We discovered a total of 25 deleted reviews for this product, with an average rating of 4.9. 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.

4.9 average rating of deleted reviews

4.9



Read more about our Deleted Reviews test.

Warn Suspicious Reviewers

Take-Back Reviewers


10 of the 177 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, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.

from take-back reviewers

from reviewers without previously deleted reviews


4.9
4.5


Read more about our Suspicious Reviewers test.

Warn 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 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.

4.4 Product's Average Ease Score

4.3 Category's Average Ease Score


4.4
4.3


Read more about our Reviewer Ease test.


Warn Phrase Repetition


29 of the 177 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


4.6
4.5


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 84%
  • 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 148 reviewers (or 84%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.5
4.5


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 5%
  • Created over 1 day

We counted 177 reviews for this product over the span of 423 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 1 day exceeding this threshold:In total, we found that 8 reviews were created on just 1 day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews created on high volume days

from reviews created on normal volume days


4.4
4.5


Read more about our Rating Trend test.

Pass Unverified Purchases

25 of the 177 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.

from unverified purchasers

from verified purchases


4.6
4.5


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.

Pass Word Count Comparison

  • 0%
  • Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.

Pass Overlapping Review History
Does not include products
from the same brand


28 of the 177 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


4.8
4.5


Read more about our Overlapping Review History 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.

-0.7 average net helpfulness for positive reviews

-1.0 average net helpfulness for negative reviews


Read more about our Skewed Helpfulness 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.


6 of the 177 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
4.5


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.