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Art Drawing Pencils, Set of 72 Assorted Colors Huhuhero Professional Premium Art Colored Pencils...
More product info From Huhuhero

Review Hijacking Alert!
400 reviews are coming from a seemingly different product variation:

Holy Stone X300C FPV RC Quadcopter Drone with Wifi Camera 2 4G 4CH 6 Axis Gyro RTF Headless Mode... (Example Review )



Learn more about Review Hijacking.
Review Hijacking Alert!
This listing appears to have once been a different product:

RC Drone for Kids and Beginners Mini Drones with LED Lights RC Quadcopter Headless Mode 2 4GHz 4...



Learn more about Review Hijacking.

Rating:
153 Reviews
23% of potentially unnatural reviews removed (Why?)
Adjusted:
View/Edit Adjustment
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Report Info:
Last Updated: Jun 4, 2019
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Show Report History
Note: While Amazon.com claims 153 reviews, we counted 1,268 available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

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

Most Trusted Reviews

Fun toy for kids [Go to full review]
Nov 4, 2017      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (2 deleted reviews; avg. rating: 5.0)
  • Critical Reviewer (avg. rating: 4.1)


Least Trusted Reviews

I am very impressed with this product. It works very ... [Go to full review]
Jan 31, 2016     1 of 1 found this helpful.  
0% TRUST
  • Unverified Purchaser
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jan 31, 2016)
  • Take-Back Reviewer (1 deleted review; avg. rating: 5.0)
  • Brand Monogamist (22 of 22 reviews for this brand; avg rating: 5.0)
  • Overlapping Review History: reviewed 7 of 9 top products
  • Overrepresented Participation (posted 22 reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Deleted Reviews

We discovered a total of 143 deleted reviews for this product, with an average rating of 4.8. 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.

4.8 average rating of deleted reviews

4.8


Show distribution of deleted reviews

Fail Brand Repeats

Brand Loyalists


142 of the 1,268 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.

from Brand Loyalists

from Non-Loyalists


4.7
4.6


Brand Monogamists


94 of the 1,268 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.

from Brand Monogamists

from Non-Monogamists


4.6
4.6


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

Take-Back Reviewers


385 of the 1,268 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


4.6
4.6


Read more about our Suspicious Reviewers test.

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

4% also reviewed:
Toys for Kids by Pexio

Does not include products
from the same brand


144 of the 1,268 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 4.6. 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
4.6


Read more about our Overlapping Review History test.

Warn Rating Trend

  • 12%
  • Created over 26 days

We counted 1,268 reviews for this product over the span of 3,423 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 26 days exceeding this threshold:In total, we found that 149 reviews were created on just 26 days. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.

from reviews created on high volume days

from reviews created on normal volume days


4.7
4.6


Read more about our Rating Trend test.

Warn Reviewer Participation

  • 75%
  • From reviewers with an overrepresented participation

We see the following 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 946 reviewers (or 75%) 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
4.6


Read more about our Reviewer Participation test.

Pass Unverified Purchases

206 of the 1,268 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


4.7
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 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:
16 reviews
(5.0/5)
21 reviews
(4.7/5)
23 reviews
(5.0/5)
17 reviews
(4.4/5)
Show MoreShow Less
Common Phrases in Titles:
30 reviews
(4.8/5)


30 of the 1,268 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.8
4.6


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


13 of the 1,268 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


4.2
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.


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