ETF für Einsteiger – Der praktische Börsenratgeber: Wie Sie clever in ETFs investieren, ein...
More product info
From Raphael Engel
Refresh the report to view the most up-to-date data available:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 4.4)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Contains repetitive phrases (show)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Brand Repeater (3 of 463 reviews for this brand; avg rating: 1.7)
- Overlapping Review History: reviewed 8 of 9 top products
- Critical Reviewer (avg. rating: 3.1)
Analysis Details
Brand Repeaters
126 of the 152 reviewers have reviewed other products for this brand. This is an excessively large percentage of Brand Repeaters which may indicate unnatural reviews.
Take-Back Reviewers
94 of the 152 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 1.5 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 2.6. 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.
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- 61%
- 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 92 reviews (or 61%) are within an overrepresented word count group. These reviews have rated this product an average of 0.0, 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.
(4.5/5)
(4.5/5)
(4.8/5)
(4.5/5)
(4.8/5)
(4.5/5)
(4.5/5)
(5.0/5)
(4.5/5)
38 of the 152 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 1.0. 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.
We discovered a total of 4 deleted Reviews for this product, with an average rating of 3.8. 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.
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137 of the 152 reviewers have substantial overlapping product review history. This is an excessively large percentage which may indicate unnatural reviews.
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- 0%
- Created on high-volume days
Read more about our Rating Trend test.
3 of the 152 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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- 16%
- 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 24 reviewers (or 16%) are within an overrepresented participation group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
3.1 Product's Average Ease Score
3.9 Category's Average Ease Score
Read more about our Reviewer Ease test.
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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.