The Merchant of Death (1) (Pendragon)
More product info
From D.J. MacHale
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 3.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Critical Reviewer (avg. rating: 3.3)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Contains repetitive phrases (show)
- Never-Verified Reviewer
- Single-Day Reviewer (posted all reviews on Jan 9, 2004)
- Brand Monogamist (2 of 2 reviews for this brand; avg rating: 5.0)
- Overrepresented Participation (posted 2 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
135 of the 542 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 3.6 while the verified purchasers have rated this product an average of 4.8. 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.
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.
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- ~45%
- 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 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that approximately 45% are within an overrepresented word count group. These reviews have rated this product an average of 4.6, while all other reviews have rated this product an average of 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.
~15% also reviewed:
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~15% also reviewed:
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<10% also reviewed:
Fablehaven, vol. 5: Keys to the Demon Prison by Brandon Mull
<10% also reviewed:
Pollyanna by Eleanor H. Porter
<10% also reviewed:
The Railway Children (Oxford Children's Classics) by Nesbit, Edith
<10% also reviewed:
The Lightning Thief (Percy Jackson and the... by Rick Riordan
<10% also reviewed:
Magyk: Septimus Heap, Book One by Angie Sage
<10% also reviewed:
Inkheart (Inkworld series Book 1) by Cornelia Funke
<10% also reviewed:
The Tales of Beedle the Bard by J.K. Rowling
Less than approximately 10% of reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.4 while the reviewers who have a more unique product review history rated this product an average of 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.
Take-Back Reviewers
Approximately 30% of 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, it does not appear to have a significant impact on the overall rating.
Approximately 15% of reviews use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
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- <10%
- Created on high-volume days
Read more about our Rating Trend test.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
Approximately 15% of 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.
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- <10%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
- 0
- Reviews have been deleted
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.