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4542 mg Bio Curcuma mit Ingwer - 270 hochdosierte Kurkuma Kapseln - Mit Bio Pfeffer (0,8 mg...
More product info From Nutravita

Amazon Reviews for  4542 mg Bio Curcuma mit Ingwer - 270 hochdosierte Kurkuma Kapseln - Mit Bio Pfeffer (0,8 mg Piperin) - 231 mg reines Curcumin - Laborgetestet in Deutschland - Vegan - Ohne Magnesiumstearat
Rating:
1,686 Ratings
("Ratings" vs. "Reviews")
14% of potentially unnatural reviews removed (why?)
Adjusted:
1,445 Ratings*




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Report Info:

Report Card

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

Most Trusted Reviews

Hilft tatsächlich bei Darmbeschwerden, jedoch sind einige der Kapseln aufgebrochen ... [Go to full review]
Dec 4, 2021      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 3.0)


Least Trusted Reviews

Gut verträglich, komme damit besser klar als mit frischen Zutaten. [Go to full review]
Apr 1, 2020      
0% TRUST
  • Verified Purchaser
  • Overrepresented word count (11 words)
  • Contains repetitive phrases (show)
  • Overlapping Review History: reviewed 1 of 9 top products
  • Easy Grader (avg. rating: 4.5)


Analysis Details

Fail Deleted Reviews

We discovered a total of 13 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

Does not include products
from the same brand


Approximately 35% of reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 5.0 while the reviewers who have a more unique product review history 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 reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


5.0
4.3


Read more about our Overlapping Review History 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 4.7, while the average ease score for reviewers in this category is 3.9. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.

4.7 Product's Average Ease Score

3.9 Category's Average Ease Score


4.7
3.9


Read more about our Reviewer Ease test.


Warn Word Count Comparison

  • ~65%
  • 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that approximately 65% are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.4
4.7


Read more about our Word Count Comparison test.

Pass Rating Trend
  • <10%
  • Created on high-volume days
We didn't notice any signals that would indicate reviews were created unevenly over time.
Read more about our Rating Trend test.

Pass Unverified Purchases

6 of the 1,686 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


N/A
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 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:
~10% of reviews
(5.0/5)

  • <10%
  • Used substantial repetitive phrases
Less than approximately 10% of reviews 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.
Read more about our Phrase Repetition test.

Pass Suspicious Reviewers

One-Hit Wonders

We didn't detect a substantial amount of One Hit Wonders.

Never-Verified Reviewers

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

Take-Back Reviewers


Approximately 20% of reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from take-back reviewers

from reviewers without previously deleted reviews


4.8
4.5


Single-Day Reviewers

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

Pass Brand Repeats

Brand Repeaters


Less than approximately 10% of 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


5.0
4.5


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.

  • <10%
  • 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.

N/A Reviewer Participation
We haven't collected sufficient data to run this test yet. more info