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Instabil - Die Zukunft ist Schnee von gestern: Zeitreisethriller (3/3)
More product info From Thariot

Amazon Reviews for  Instabil - Die Zukunft ist Schnee von gestern: Zeitreisethriller (3/3)
Rating:
89 Ratings
89 Reviews
("Ratings" vs. "Reviews")
30% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Report Card

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

Most Trusted Reviews

Es ist so Klasse, wie logisch die Wendungen in dieser ... [Go to full review]
Jan 22, 2019      
100% TRUST
  • Unverified Purchaser
  • Overrepresented word count (21 words)
  • Brand Repeater (2 of 10 reviews for this brand; avg rating: 5.0)
  • Critical Reviewer (avg. rating: 3.6)


Least Trusted Reviews

Für mich war das ein überraschendes Ende, dabei aber gut ... [Go to full review]
Jun 19, 2018      
15% TRUST
  • Verified Purchaser
  • Contains repetitive phrases (show)
  • Brand Repeater (3 of 10 reviews for this brand; avg rating: 5.0)
  • Overrepresented Participation (posted 10 Reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Warn Rating Trend

  • 10%
  • Created over 2 days

We counted 89 reviews for this product over the span of 246 days, an average of 0.4 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.

However, we see the following 2 days exceeding this threshold:In total, we found that 9 reviews were created on just 2 days. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.

from reviews created on high volume days

from reviews created on normal volume days


5.0
4.8


Read more about our Rating Trend test.

Warn Suspicious Reviewers

One-Hit Wonders


20 of the 89 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from one-hit wonders

from reviewers with more than one review


4.8
4.8


Take-Back Reviewers


3 of the 89 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, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.

from take-back reviewers

from reviewers without previously deleted reviews


5.0
4.8


Read more about our Suspicious Reviewers test.

Warn 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 4.5, while the average ease score for reviewers in this category is 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.

4.5 Product's Average Ease Score

4.3 Category's Average Ease Score


4.5
4.3


Read more about our Reviewer Ease test.


Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.

Common Phrases in Reviews:
4 reviews
(5.0/5)
2 reviews
(5.0/5)
4 reviews
(4.5/5)
2 reviews
(5.0/5)
2 reviews
(3.0/5)
3 reviews
(5.0/5)
4 reviews
(4.0/5)
3 reviews
(4.7/5)
Show MoreShow Less
Common Phrases in Titles:
3 reviews
(4.7/5)
2 reviews
(4.5/5)
2 reviews
(4.5/5)
2 reviews
(4.5/5)
2 reviews
(4.5/5)
2 reviews
(5.0/5)
2 reviews
(4.5/5)
2 reviews
(4.5/5)
2 reviews
(5.0/5)
2 reviews
(5.0/5)
Show MoreShow Less


53 of the 89 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.8
4.8


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 54%
  • 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 48 reviewers (or 54%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.8
4.8


Read more about our Reviewer Participation test.

Pass Unverified Purchases

31 of the 89 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


4.8
4.8


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 Word Count Comparison

  • 25%
  • 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 22 reviews (or 25%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.9
4.8


Read more about our Word Count Comparison test.

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

Does not include products
from the same brand


34 of the 89 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.8
4.8


Read more about our Overlapping Review History test.

Pass Brand Repeats

Brand Repeaters

We didn't detect a substantial amount of Brand Repeaters.

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.

Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.

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.