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Defend BCAA
More product info From Grenade

59% of potentially unnatural reviews removed (Why?)
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Report Info:

Top products in All Bodybuilding.com Products with authentic reviews:


Stringer Tank



Adjusted
Rating:
1 Review

Report Card

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

Other analysis for this product:

Most Trusted Reviews

8/10
I think this is a very good BCAA product. I ... [Go to full review]
Jun 4, 2016      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 8.6)


Least Trusted Reviews

10/10
I HAVE BEEN USING THE UK VERSION OF THIS PRODUCT ... [Go to full review]
Feb 11, 2016      
0% TRUST
  • Unverified Purchaser
  • Never-Verified Reviewer
  • Brand Monogamist (3 of 3 reviews for this brand; avg rating: 10.0)
  • Easy Grader (avg. rating: 10.0)


Analysis Details

Fail Brand Repeats

Brand Repeaters


10 of the 29 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Repeaters

from Non-Repeaters


9.7
9.6


Brand Loyalists


4 of the 29 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.

from Brand Loyalists

from Non-Loyalists


9.5
9.7


Brand Monogamists


2 of the 29 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


10.0
9.6


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

One-Hit Wonders


5 of the 29 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, the discrepancy in ratings between the One-Hit Wonders and reviewers who have posted more than one review isn't significant enough to rule out the possibility of it being due to random chance.

from one-hit wonders

from reviewers with more than one review


9.8
9.6


Never-Verified Reviewers


8 of the 29 reviewers have never written a verified purchase review. While this is more Never-Verified Reviewers than we'd expect to see, the discrepancy in ratings between the Never-Verified Reviewers and reviewers who have written at least one verified purchase review isn't significant enough to rule out the possibility of it being due to random chance.

from never-verified reviewers

from reviewers with at least one verified purchase review


9.9
9.6


Take-Back Reviewers


10 of the 29 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


9.8
9.6


Read more about our Suspicious Reviewers test.

Fail 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 9.4, while the average ease score for reviewers in this category is 8.8. 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.

9.4 Product's Average Ease Score

8.8 Category's Average Ease Score


9.4
8.8


Read more about our Reviewer Ease test.


Warn Unverified Purchases

16 of the 29 total reviews for this product are unverified purchases. While this is a higher percentage of unverified purchases than we'd expect to see, the discrepancy in ratings between the unverified purchases and verified purchases isn't significant enough to rule out the possibility of it being due to random chance.

from unverified purchasers

from verified purchases


9.8
9.5


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.

Warn Sample Reviews

2 of the 29 total reviews for this product mentioned the word "sample" within their review. While we could not find a statistically significant difference between the average rating of reviews that mentioned the word "sample" and those that did not, the presences of any reviews that mention the word "sample" indicates that there may be more, since not all reviewers will disclose that they used a sample within their review.

from reviews that use the word "sample"

from reviews that don't use the word "sample"


10.0
9.6


Read more about our Sample Reviews test.

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

21% also reviewed:
ENGN by EVLUTION NUTRITION

17% also reviewed:
ISO100 by Dymatize

17% also reviewed:
Best BCAA by BPI Sports

17% also reviewed:
Protein by True GRIT

17% also reviewed:
Pre by True GRIT

17% also reviewed:
SteelEdge by Athletic Edge

Does not include products
from the same brand


16 of the 29 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, the discrepancy in ratings between these reviewers and reviewers who have a more unique product review history isn't significant enough to rule out the possibility of it being due to random chance.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


9.7
9.6


Read more about our Overlapping Review History test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 29 reviews for this product over the span of 529 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 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.



4 of the 29 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


9.8
9.6


Read more about our Phrase Repetition test.

Pass Reviewer Participation

  • 0%
  • From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.

Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.

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.


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