Browser Extensions 



Close

Why is ReviewMeta.com a Must-Have for Amazon Shoppers?


Free Phone Apps

Free Browser Extensions




BIOMENTA Vitamin B12 hochdosiert – mit 500µg Methylcobalamin + Vitamin D3 + Biotin + Folsäure...
More product info From BIOMENTA

Amazon Reviews for  BIOMENTA Vitamin B12 hochdosiert – mit 500µg Methylcobalamin + Vitamin D3 + Biotin + Folsäure – vegan - 4 Monatskur - 120 Vitamin-B12-Lutschtabletten
Rating:
159 Ratings
105 Reviews
("Ratings" vs. "Reviews")
3% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card
Report Info:
Last Updated: Aug 30, 2020
Refresh Report
Show Report History
Note: While Amazon.de claims 159 Ratings, we counted 105 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

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

Most Trusted Reviews

3/5
Leider ist die Folsäure die synthetische Form des Vitamin B9 ... [Go to full review]
Jun 4, 2019      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 3.8)


Least Trusted Reviews

Mir wurde das Produkt von testbericht.reviews für einen kostenlosen Test. ... [Go to full review]
Jul 10, 2015      
10% TRUST
  • Unverified Purchaser
  • Contains repetitive phrases (show)
  • Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
  • Overlapping Review History: reviewed 3 of 9 top products
  • Overrepresented Participation (posted 75 Reviews)
  • Easy Grader (avg. rating: 4.5)


Analysis Details

Fail Deleted Reviews

We discovered a total of 22 deleted Reviews for this product, with an average rating of 4.7. 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.

4.7 average rating of deleted reviews

4.7


Show distribution of deleted reviews

Fail Phrase Repetition


44 of the 105 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 4.2. 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
4.2


Read more about our Phrase Repetition test.

Warn Suspicious Reviewers

Take-Back Reviewers


49 of the 105 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


4.6
4.4


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 4.2. 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

4.2 Category's Average Ease Score


4.5
4.2


Read more about our Reviewer Ease test.


Warn Reviewer Participation

  • 37%
  • From reviewers with an overrepresented participation

We see the following 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 39 reviewers (or 37%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, the discrepancy in ratings between reviewers in an overrepresented participation groups and all other reviewers isn’t significant enough to rule out the possibility of it being due to random chance.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.6
4.4


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 105 reviews for this product over the span of 1,978 days, an average of 0.1 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. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.

Pass Unverified Purchases

19 of the 105 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
4.4


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


26 of the 105 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
4.5


Read more about our Overlapping Review History test.

Pass Brand Repeats

Brand Repeaters


25 of the 105 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


4.8
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. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.


English         Français         Deutsche         Español         Italiano         Portugues         日本語        

All trademarks and images are trademark of their respective owner. ReviewMeta.com is completely independent of Amazon. We do not warrant or guarantee any of the information contained on this site. We are making no assertions about the products or brands themselves; only opinions on the reviews.

Newsletter Sign-Up

Yes, I consent to my personal data being used to receive useful content for my brand, VIP event invites, and more information from ReviewMeta. You can unsubscribe anytime. For more details, please review our Privacy Policy
  1. Follow Us:



ReviewMeta.com is NOT part of the Amazon affiliate program and does NOT receive compensation from Amazon.

Back to Top  ↑