Onkel Dagobert - Sein Leben, seine Milliarden: Die Biografie von Don Rosa
More product info
From Don Rosa
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Overlapping Review History: reviewed 2 of 9 top products
- Critical Reviewer (avg. rating: 3.3)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Contains repetitive phrases (show)
- Easy Grader (avg. rating: 4.3)
Analysis Details
(5.0/5)
(5.0/5)
(4.3/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(4.9/5)
72 of the 117 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases 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.
4.4 Product's Average Ease Score
3.9 Category's Average Ease Score
Read more about our Reviewer Ease test.
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- 2%
- Created over 1 day
We counted 117 reviews for this product over the span of 3,994 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 2 reviews were created on just 1 day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
42 of the 117 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.
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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
One-Hit Wonders
9 of the 117 reviewers have only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Never-Verified Reviewers
22 of the 117 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Take-Back Reviewers
13 of the 117 reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Single-Day Reviewers
1 of the 117 reviewers have written multiple reviews but posted all of them on a single day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
7% also reviewed:
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13 of the 117 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.
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- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
Brand Repeaters
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- 0%
- 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.