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Solar Lights Garden, Vansky® 20ft/6M 30 RGB LED Christmas Tree Lights Fairy Garden Solar Lights... From Vansky Report Feedback

Fail Unnatural reviews detected

Original:

85 Reviews

Adjusted:

47 Reviews

Rank in: Garden Décor
81%
72%

View/Edit Adjustment
How is this calculated
Report Last Updated: Oct 4, 2017
Update Available
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Report Card

Click a test to jump to details

FAIL Deleted Reviews
FAIL Suspicious Reviewers
FAIL Reviewer Ease
WARN Rating Trend
WARN Phrase Repetition
WARN Reviewer Participation
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

3/5
Lights are beautiful . Dont shine as long as i ... [Go to full review]
Nov 11, 2016      
90% TRUST
  • Verified Purchaser
  • Overrepresented Participation (posted 2 reviews)
  • Critical Reviewer (avg. rating: 4.0)


Least Trusted Reviews

Great set of lights , a must to light up ... [Go to full review]
Jun 23, 2016      
20% TRUST
  • Unverified Purchaser
  • Take-Back Reviewer (1 deleted review; avg. rating: 4.0)
  • Easy Grader (avg. rating: 4.6)


Analysis Details


Fail Deleted Reviews

We discovered a total of 38 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.

5.0 average rating of deleted reviews

5.0



Read more about our Deleted Reviews test.

Fail Suspicious Reviewers

Take-Back Reviewers


11 of the 85 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


4.9
4.6


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 4.5, while the average ease score for reviewers in this category is 4.4. 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.

4.5 Product's Average Ease Score

4.4 Category's Average Ease Score


4.5
4.4


Read more about our Reviewer Ease test.


Warn Rating Trend

  • 9%
  • Created over 1 day

We counted 85 reviews for this product over the span of 225 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. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.

from reviews created on high volume days

from reviews created on normal volume days


4.6
4.6


Read more about our Rating Trend 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:
3 reviews
(3.5%)
2 reviews
(2.4%)
2 reviews
(2.4%)
2 reviews
(2.4%)
2 reviews
(2.4%)
2 reviews
(2.4%)
2 reviews
(2.4%)
3 reviews
(3.5%)
2 reviews
(2.4%)
2 reviews
(2.4%)
Show MoreShow Less
Common Phrases in Titles:
4 reviews
(4.7%)
3 reviews
(3.5%)
2 reviews
(2.4%)
2 reviews
(2.4%)
2 reviews
(2.4%)
2 reviews
(2.4%)
2 reviews
(2.4%)
Show MoreShow Less


16 of the 85 total reviews for this product use substantial repetitive phrases between them. While this is more than we'd expect to see, the discrepancy in ratings between the these reviews and reviews without substantial repetitive phrases isn't significant enough to rule out the possibility of it being due to random chance.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.9
4.6


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 79%
  • 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 67 reviewers (or 79%) 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


4.6
4.9


Read more about our Reviewer Participation test.

Pass Unverified Purchases

24 of the 85 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


4.8
4.6


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


14 of the 85 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


4.6
4.6


Read more about our Overlapping Review History test.

Pass Brand Repeats

Brand Repeaters


4 of the 85 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
4.6


Read more about our Brand Repeats test.

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.

0.2 average net helpfulness for positive reviews

0.0 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.


2 of the 85 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
4.6


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.