1919 - Historische Romane (Die Jahre des Schicksals 1)
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From Markus Willinger
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Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (23 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.3)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Contains repetitive phrases (show)
- Never-Verified Reviewer
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Overlapping Review History: reviewed 2 of 9 top products
- Easy Grader (avg. rating: 5.0)
Analysis Details
We discovered a total of 35 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.
Take-Back Reviewers
45 of the 84 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.
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- 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 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 43 reviews (or 51%) are within an overrepresented word count group. These reviews have rated this product an average of 0.1, while all other reviews 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.
(5.0/5)
(5.0/5)
(4.8/5)
(5.0/5)
(4.8/5)
(5.0/5)
(5.0/5)
(3.7/5)
(4.8/5)
(5.0/5)
(5.0/5)
(4.5/5)
(5.0/5)
26 of the 84 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.8 while reviews without substantial repetitive phrases rated this product an average of 1.4. 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.
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23 of the 84 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.3 while the reviewers who have a more unique product review history rated this product an average of 2.1. 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.
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- 0%
- Created over 3 days
However, we see the following 3 days exceeding this threshold:
- 4 Reviews on Jan 6, 2019 (Avg. rating: 3.8)
- 3 Reviews on Nov 21, 2018 (Avg. rating: 5.0)
- 3 Reviews on Jan 12, 2019 (Avg. rating: 5.0)
Read more about our Rating Trend test.
30 of the 84 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%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
4.0 Product's Average Ease Score
3.9 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
9 of the 84 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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- 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.