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Philips Sonicare DiamondClean Smart Schallzahnbürste HX9924/03 mit 5 Putzprogrammen, 3... From Philips Report Feedback

Warn Unnatural reviews possible

Original:

107 Reviews

Adjusted:

36 Reviews

50%
61%

View/Edit Adjustment
How is this calculated
Report Last Updated: Jul 11, 2018
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Report Card

Click a test to jump to details

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

Most Trusted Reviews

Macht die Zähne weißer Atemspray funktioniert sehr gut schadet dem ... [Go to full review]
Jun 13, 2018      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 2.5)


Least Trusted Reviews

Seit einigen Jahren schleiche ich schon um eine Sonicare rum ... [Go to full review]
Nov 5, 2017      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Contains repetitive phrases (show)
  • Take-Back Reviewer (3 deleted reviews; avg. rating: 5.0)
  • Brand Repeater (20 of 397 reviews for this brand; avg rating: 4.9)
  • Overlapping Review History: reviewed 3 of 9 top products
  • Easy Grader (avg. rating: 4.7)


Analysis Details


Fail Brand Repeats

Brand Repeaters


87 of the 107 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


4.5
4.2


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

One-Hit Wonders


1 of the 107 reviewers has only reviewed this product. The One-Hit Wonders have rated this product an average of 2.0 while the reviewers who have posted more than one review have rated this product an average of 4.5. 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 one-hit wonders

from reviewers with more than one review


2.0
4.5


Take-Back Reviewers


76 of the 107 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 4.6 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 4.1. 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


4.6
4.1


Read more about our Suspicious Reviewers test.

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

Does not include products
from the same brand


82 of the 107 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.6 while the reviewers who have a more unique product review history rated this product an average of 4.1. 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


4.6
4.1


Read more about our Overlapping Review History test.

Warn Deleted Reviews

We discovered a total of 5 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 the Deleted Reviews test here.

4.6 average rating of deleted reviews

4.6


Show distribution of deleted reviews

Warn Rating Trend

  • 6%
  • Created over 1 day

We counted 107 reviews for this product over the span of 257 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 4 or fewer reviews on any given day.

However, we see the following 1 day exceeding this threshold:In total, we found that 6 reviews were created on just 1 day. 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


4.8
4.4


Read more about our Rating Trend 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:
14 reviews
(4.7/5)
24 reviews
(4.1/5)
19 reviews
(4.5/5)
Show MoreShow Less
Common Phrases in Titles:
4 reviews
(4.8/5)
18 reviews
(4.6/5)
3 reviews
(4.3/5)
3 reviews
(4.3/5)
2 reviews
(4.0/5)
2 reviews
(4.0/5)
Show MoreShow Less


102 of the 107 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


4.5
3.8


Read more about our Phrase Repetition test.

Pass Unverified Purchases

2 of the 107 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
4.5


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 Reviewer Participation

  • 14%
  • 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 15 reviewers (or 14%) 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


4.5
4.4


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 4.2, while the average ease score for reviewers in this category is 4.2.

4.2 Product's Average Ease Score

4.2 Category's Average Ease Score


4.2
4.2


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


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