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Maulwurfabwehr,Yica 2 Stück Ultrasonic Solar Maulwurfabwehr, Maulwurfschreck, Maulwurfbekämpfung,...
More product info From Yica

Amazon Reviews for  Maulwurfabwehr,Yica 2 Stück Ultrasonic Solar Maulwurfabwehr, Maulwurfschreck, Maulwurfbekämpfung, Wühlmausschreck,maulwurf, onic Repeller Schädlingsbekämpfung
Rating:
21 Ratings
21 Reviews
("Ratings" vs. "Reviews")
19% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Report Card

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

Most Trusted Reviews

Die Piepser senden zwar Signale, aber Maulwürfe werden davon nicht ... [Go to full review]
Mar 30, 2018      
100% TRUST
  • Verified Purchaser
  • Easy Grader (avg. rating: 4.1)


Least Trusted Reviews

Gerät 3 Tage in Betrieb gehabt, dann kam etwas Feuchtigkeit ... [Go to full review]
Feb 24, 2018      
0% TRUST
  • Verified Purchaser
  • Brand Monogamist (17 reviews for this brand; avg rating: 3.7)
  • Overrepresented Participation (posted 4 Reviews)
  • Critical Reviewer (avg. rating: 1.3)


Analysis Details

Fail Deleted Reviews

We discovered a total of 11 deleted Reviews for this product, with an average rating of 4.6. 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.

4.6 average rating of deleted reviews

4.6


Show distribution of deleted reviews

Fail Brand Repeats

Brand Monogamists


4 of the 21 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.

from Brand Monogamists

from Non-Monogamists


1.0
2.0


Read more about our Brand Repeats test.

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



3 of the 21 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.7 while the reviewers who have a more unique product review history rated this product an average of 1.5. 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 reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


3.7
1.5


Read more about our Overlapping Review History test.

Fail Reviewer Participation

  • 62%
  • 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 13 reviewers (or 62%) are within an overrepresented participation group. These reviews have rated this product an average of 1.3, while all other reviews 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 reviewers with an overrepresented participation

From reviewers with a properly represented participation


1.3
2.6


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 0%
  • Created over 1 day
We counted 21 reviews for this product over the span of 427 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 2 or fewer reviews on any given day.

However, we see the following 1 day exceeding this threshold:In total, we found that 0 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.
Read more about our Rating Trend test.

Pass Unverified Purchases
  • 0%
  • Unverified Purchases
0 of the 21 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.

Pass Word Count Comparison

  • 0%
  • Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.

Pass 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:
2 reviews
(1.0/5)
2 reviews
(1.0/5)


1 of the 21 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


1.0
1.9


Read more about our Phrase Repetition test.

Pass Suspicious Reviewers

One-Hit Wonders


2 of the 21 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.

from one-hit wonders

from reviewers with more than one review


1.0
1.9


Never-Verified Reviewers

We didn't detect a substantial amount of Never-Verified Reviewers.

Take-Back Reviewers

We didn't detect a substantial amount of Take-Back Reviewers.

Single-Day Reviewers

We didn't detect a substantial amount of Single-Day Reviewers.

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

2.9 Product's Average Ease Score

3.9 Category's Average Ease Score


2.9
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.