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Gigaset C430HX Duo DECT-/VOIP schnurlostelefon (IP Telefon Fritzbox kompatibel, 2...
More product info From Gigaset

Review Hijacking Alert!
23 reviews are coming from a seemingly different product variation:

Gigaset CL660 Telefon Schnurlostelefon Mobilteil mit Farbdisplay Grosse Tasten Design Telefon ... (Example Review )



Learn more about Review Hijacking.
Review Hijacking Alert!
This listing appears to have once been a different product:

Gigaset CL660 Telefon Schnurlostelefon Mobilteil mit Farbdisplay Grosse Tasten Design Telefon ...



Learn more about Review Hijacking.

Rating:
3,781 Reviews
13% of potentially unnatural reviews removed (Why?)
Adjusted:
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Report Info:
Last Updated: Jun 15, 2019
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Note: While Amazon.de claims 3,781 reviews, we counted 4,104 available on their site.

Report Card

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

Most Trusted Reviews

In Ergänzung und Erweitewrung der vorhandenen Anlage C 430 A ... [Go to full review]
Apr 10, 2018      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 4.0)


Least Trusted Reviews

5/5
Aufbauen anschließen telefonierenDas Telefon ist griffig in der Hand und ... [Go to full review]
Oct 3, 2016      
0% TRUST
  • Verified Purchaser
  • Contains repetitive phrases (show)
  • Single-Day Reviewer (posted all reviews on Oct 3, 2016)
  • Overrepresented Participation (posted 13 reviews)
  • Critical Reviewer (avg. rating: 4.0)


Analysis Details

Fail Suspicious Reviewers

Take-Back Reviewers


566 of the 4,104 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.4
4.4


Single-Day Reviewers


60 of the 4,104 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.8 while all other reviewers rated this product an average of 4.4. 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.

from single-day reviewers

from non-single-day reviewers


4.8
4.4


Read more about our Suspicious Reviewers test.

Fail 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:
98 reviews
(4.8/5)
125 reviews
(4.8/5)
83 reviews
(4.4/5)
96 reviews
(4.8/5)
143 reviews
(4.9/5)
79 reviews
(4.6/5)
65 reviews
(4.6/5)
140 reviews
(4.4/5)
45 reviews
(4.7/5)
45 reviews
(4.2/5)
Show MoreShow Less
Common Phrases in Titles:
82 reviews
(4.7/5)
154 reviews
(4.6/5)
107 reviews
(4.9/5)
44 reviews
(4.4/5)
136 reviews
(4.3/5)
67 reviews
(4.8/5)
49 reviews
(4.9/5)
192 reviews
(4.3/5)
Show MoreShow Less


637 of the 4,104 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 4.3. 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
4.3


Read more about our Phrase Repetition test.

Warn Deleted Reviews

We discovered a total of 69 deleted reviews for this product, with an average rating of 4.4. 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 the Deleted Reviews test here.

4.4 average rating of deleted reviews

4.4


Show distribution of deleted reviews

Warn Reviewer Participation

  • 47%
  • 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 1910 reviewers (or 47%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.4
4.4


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 1%
  • Created over 4 days

We counted 4,104 reviews for this product over the span of 2,102 days, an average of 2.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 8 or fewer reviews on any given day.

However, we see the following 4 days exceeding this threshold:In total, we found that 36 reviews were created on just 4 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews created on high volume days

from reviews created on normal volume days


4.3
4.4


Read more about our Rating Trend test.

Pass Unverified Purchases

105 of the 4,104 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


4.0
4.4


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

Does not include products
from the same brand


312 of the 4,104 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


4.5
4.4


Read more about our Overlapping Review History 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 4.3, while the average ease score for reviewers in this category is 4.4.

4.3 Product's Average Ease Score

4.4 Category's Average Ease Score


4.3
4.4


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


121 of the 4,104 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.

from Brand Repeaters

from Non-Repeaters


4.2
4.4


Read more about our Brand Repeats 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, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.


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