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VANKYO MatrixPad Z1 Kids Tablet 7 inch, 32GB ROM, Kidoz Pre Installed, IPS HD Display, WiFi Android...
More product info From vankyo

Amazon Reviews for  VANKYO MatrixPad Z1 Kids Tablet 7 inch, 32GB ROM, Kidoz Pre Installed, IPS HD Display, WiFi Android Tablet, Kid-Proof, Blue
Rating:
9,763 Ratings
5,276 Reviews
("Ratings" vs. "Reviews")
22% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card
Report Info:
Last Updated: Dec 18, 2020
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Note: While Amazon.com claims 9,763 Ratings, we counted 5,276 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

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

Most Trusted Reviews

The screen is fragile and scratches easily. If you touch ... [Go to full review]
Mar 21, 2020      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (2 deleted Reviews; avg. rating: 4.0)
  • Critical Reviewer (avg. rating: 4.0)


Least Trusted Reviews

4/5
Really nice item, thick durable protective case. Lots of good ... [Go to full review]
Apr 21, 2020      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Contains repetitive phrases (show)

Reviewer data not yet gathered.


Analysis Details

Fail Rating Trend

  • 13%
  • Created over 20 days

We counted 5,276 reviews for this product over the span of 468 days, an average of 11.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 24 or fewer reviews on any given day.

However, we see the following 20 days exceeding this threshold:In total, we found that 668 reviews were created on just 20 days. The reviews on these high volume days have rated this product an average of 4.4 while reviews from other days have rated this product an average of 4.2. 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 created on high volume days

from reviews created on normal volume days


4.4
4.2


Read more about our Rating Trend test.

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


5 of the 5,276 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. Incentivized reviews have rated this product an average of 2.6 while reviews that were not incentivized rated this product an average of 4.2. 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 incentivized reviews

from non-incentivized reviews


2.6
4.2


Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.

Fail Suspicious Reviewers

One-Hit Wonders


1,121 of the 5,276 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from one-hit wonders

from reviewers with more than one review


4.2
4.2


Single-Day Reviewers


102 of the 5,276 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.5 while all other reviewers rated this product an average of 4.2. 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 single-day reviewers

from non-single-day reviewers


4.5
4.2


Read more about our Suspicious Reviewers test.

Fail 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:
218 reviews
(4.3/5)
102 reviews
(4.7/5)
269 reviews
(4.6/5)
242 reviews
(3.8/5)
134 reviews
(4.6/5)
94 reviews
(4.8/5)
123 reviews
(4.3/5)
150 reviews
(4.7/5)
151 reviews
(4.7/5)
78 reviews
(4.4/5)
Show MoreShow Less
Common Phrases in Titles:
126 reviews
(4.8/5)
49 reviews
(4.8/5)
52 reviews
(4.9/5)


658 of the 5,276 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.7 while reviews without substantial repetitive phrases rated this product an average of 4.1. 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 substantial repetitive phrases

from reviews without substantial repetitive phrases


4.7
4.1


Read more about our Phrase Repetition test.

Warn Deleted Reviews

We discovered a total of 119 deleted Reviews for this product, with an average rating of 4.4. 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 our Deleted Reviews test.

4.4 average rating of deleted reviews

4.4


Show distribution of deleted reviews

Warn Brand Repeats

Brand Loyalists


196 of the 5,276 reviewers have reviewed multiple products but half or more of their reviews are for this brand. While this is more Brand Loyalists than we'd expect to see, the discrepancy in ratings between the Brand Loyalists and non-loyalists isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Loyalists

from Non-Loyalists


4.7
4.2


Read more about our Brand Repeats 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 4.2, while the average ease score for reviewers in this category is 4.1. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.

4.2 Product's Average Ease Score

4.1 Category's Average Ease Score


4.2
4.1


Read more about our Reviewer Ease test.


Warn Reviewer Participation

  • 61%
  • From reviewers with an overrepresented participation

We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 3204 reviewers (or 61%) 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


4.2
4.2


Read more about our Reviewer Participation test.

Pass Unverified Purchases

379 of the 5,276 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


4.2
4.2


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
  • 0%
  • Substantial overlapping review history
0 of the 5,276 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.
Read more about our Overlapping Review History test.