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Doctor Who Coloring Book
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From James Newman Gray
This report was last updated 10/7/2018.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
WARN Rating Trend
WARN Phrase Repetition
WARN Reviewer Participation
PASS Unverified Purchases
PASS Overlapping Review History
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
The pictures are great but my prisma art markers bled ... [Go to full review]
May 4, 2017
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (4 deleted Reviews; avg. rating: 4.5)
- Easy Grader (avg. rating: 4.3)
Least Trusted Reviews
Best quality coloring book I've ever seen. It's beautiful. Can't ... [Go to full review]
Feb 24, 2016
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Overrepresented word count (14 words)
- Contains repetitive phrases (show)
- Take-Back Reviewer (4 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.6)
Analysis Details
Fail Deleted Reviews
We discovered a total of 42 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.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
- 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.
- We have no information on reviews that were never published in the first place.
- 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.
Fail Suspicious Reviewers
Take-Back Reviewers
166 of the 697 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.
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 4.3. 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
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
-
- 51%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 354 reviews (or 51%) are within an overrepresented word count group. These reviews have rated this product an average of 4.9, while all other reviews have rated this product an average of 4.7. 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.
Warn Rating Trend
-
- 28%
- Created over 25 days
We counted 697 reviews for this product over the span of 944 days, an average of 0.7 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.
However, we see the following 25 days exceeding this threshold:In total, we found that 194 reviews were created on just 25 days. This is an excessively high number of reviews submitted on these high volume days.
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:
Show MoreShow Less
50 reviews
(4.8/5)
(4.8/5)
32 reviews
(4.7/5)
(4.7/5)
58 reviews
(4.7/5)
(4.7/5)
18 reviews
(4.9/5)
(4.9/5)
13 reviews
(4.9/5)
(4.9/5)
8 reviews
(4.8/5)
(4.8/5)
7 reviews
(4.9/5)
(4.9/5)
19 reviews
(4.5/5)
(4.5/5)
8 reviews
(4.6/5)
(4.6/5)
10 reviews
(4.7/5)
(4.7/5)
133 of the 697 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn Reviewer Participation
-
- 54%
- 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 376 reviewers (or 54%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
47 of the 697 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.
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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
6% also reviewed:
Harry Potter Magical Creatures Coloring Book:... by Scholastic
4% also reviewed:
Prismacolor Premier Colored Pencils, Soft Core,... by Prismacolor
3% also reviewed:
Jacquard Products Jacquard Procion MX Dye,... by Jacquard
3% also reviewed:
Sargent Art Colored Pencils by Sargent Art
2% also reviewed:
Doctor Who Mad Libs by Price Stern Sloan (COR)
2% also reviewed:
Harry Potter and the Sorcerer's Stone by J.K. Rowling
2% also reviewed:
RED HEART Super Saver Jumbo Yarn, Camouflage by Red Heart
2% also reviewed:
Sakura 37379 5-Piece Gelly Roll Blister Card Gel... by Sakura
117 of the 697 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.
Pass Brand Repeats
Brand Repeaters
6 of the 697 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.
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.
-
- 0%
- Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.