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ETF für Einsteiger – Der praktische Börsenratgeber: Wie Sie clever in ETFs investieren, ein...
More product info From Raphael Engel

Amazon Reviews for  ETF für Einsteiger – Der praktische Börsenratgeber: Wie Sie clever in ETFs investieren, ein Vermögen aufbauen & Ihr Geld selbst in Krisenzeiten rentabel anlegen
Rating:
254 Ratings
152 Reviews
("Ratings" vs. "Reviews")
76% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
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Report Info:
Last Updated: Mar 5, 2023
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Note: While Amazon.de claims 254 Ratings, we counted 152 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

Fail Overall Grade
FAIL Brand Repeats
FAIL Suspicious Reviewers
FAIL Word Count Comparison
FAIL Phrase Repetition
WARN Deleted Reviews
WARN Overlapping Review History
PASS Rating Trend
PASS Unverified Purchases
PASS Reviewer Participation
PASS Reviewer Ease
PASS Incentivized Reviews

Most Trusted Reviews

5/5
Sehr zu gebrauchen. Super Tipps und ein guter Leitfaden um ... [Go to full review]
Sep 20, 2022      
100% TRUST
  • Verified Purchaser
  • Easy Grader (avg. rating: 4.4)


Least Trusted Reviews

Ein sehr verständlich geschriebenes Buch, daher super für Anfänger geeignet!Auch ... [Go to full review]
Dec 31, 1969      
0% 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

Fail Brand Repeats

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.

from Brand Repeaters

from Non-Repeaters


1.6
3.4


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

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.

from take-back reviewers

from reviewers without previously deleted reviews


1.5
2.6


Read more about our Suspicious Reviewers test.

Fail Word Count Comparison

  • 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


N/A
4.8


Read more about our Word Count Comparison test.

Fail Phrase Repetition


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.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.8
1.0


Read more about our Phrase Repetition test.

Warn Deleted 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:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about our Deleted Reviews test.

3.8 average rating of deleted reviews

3.8


Show distribution of deleted reviews

Warn Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

Does not include products
from the same brand


137 of the 152 reviewers have substantial overlapping product review history. This is an excessively large percentage which may indicate unnatural reviews.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


1.8
2.9


Read more about our Overlapping Review History test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 152 reviews for this product over the span of 450 days, an average of 0.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.

Pass Unverified Purchases

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.

from unverified purchasers

from verified purchases


1.7
1.9


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 Reviewer Participation

  • 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.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


2.0
1.9


Read more about our Reviewer Participation test.

Pass 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 3.1, while the average ease score for reviewers in this category is 3.9.

3.1 Product's Average Ease Score

3.9 Category's Average Ease Score


3.1
3.9


Read more about our Reviewer Ease test.


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.