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Fail Unnatural reviews detected

Original:

475 Reviews

Adjusted:

57 Reviews

69%
27%

View/Edit Adjustment
How is this calculated?
Report Last Updated: Jul 19, 2017

Report Card

Click a test to jump to details

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

Most Trusted Reviews

7/10
Not the best tasting. Doesn't dissolve in water well. Like ... [Go to full review]
Jul 8, 2016      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 6.8)


Least Trusted Reviews

10/10
I take this everyday, before my Gym Session. Love the ... [Go to full review]
Jul 8, 2015      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jul 8, 2015)
  • Take-Back Reviewer (1 deleted review; avg. rating: 10.0)
  • Brand Monogamist (3 of 3 reviews for this brand; avg rating: 10.0)
  • Easy Grader (avg. rating: 10.0)


Analysis Details

Note: While Bodybuilding.com claims 475 reviews, we counted 434 available on their site.

Fail Deleted Reviews

We discovered a total of 42 deleted reviews for this product, with an average rating of 9.7. 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 the Deleted Reviews test here.

9.7 average rating of deleted reviews

9.7


Show distribution of deleted reviews

Fail Rating Trend

  • 42%
  • Created over 20 days

We counted 434 reviews for this product over the span of 855 days, an average of 0.5 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 20 days exceeding this threshold:In total, we found that 184 reviews were created on just 20 days. The reviews on these high volume days have rated this product an average of 9.2 while reviews from other days have rated this product an average of 8.6. 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 created on high volume days

from reviews created on normal volume days


9.2
8.6


Read more about our Rating Trend test.

Fail Unverified Purchases

332 of the 434 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 9.1 while the verified purchasers have rated this product an average of 8.1. 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 unverified purchasers

from verified purchases


9.1
8.1


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.

Fail Brand Repeats

Brand Repeaters


278 of the 434 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


9.2
8.3


Brand Loyalists


164 of the 434 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


9.2
8.7


Brand Monogamists


72 of the 434 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


9.3
8.8


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

One-Hit Wonders


65 of the 434 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from one-hit wonders

from reviewers with more than one review


8.0
9.0


Never-Verified Reviewers


247 of the 434 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 9.1 while the reviewers who have written at least one verified purchase review rated this product an average of 8.5. 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 never-verified reviewers

from reviewers with at least one verified purchase review


9.1
8.5


Take-Back Reviewers


91 of the 434 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


8.7
8.9


Single-Day Reviewers


74 of the 434 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 9.1 while all other reviewers rated this product an average of 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.

from single-day reviewers

from non-single-day reviewers


9.1
8.8


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, 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.

9.0 Product's Average Ease Score

8.8 Category's Average Ease Score


9.0
8.8


Read more about our Reviewer Ease test.


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

25% also reviewed:
Phase8 by MuscleTech

16% also reviewed:
Anarchy by MuscleTech

12% also reviewed:
Clear Muscle by MuscleTech

12% also reviewed:
Micellar Whey by MuscleTech

10% also reviewed:
NITRO-TECH by MuscleTech

8% also reviewed:
CELL-TECH by MuscleTech

8% also reviewed:
Platinum 100% Whey by MuscleTech

Does not include products
from the same brand


196 of the 434 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 9.2 while the reviewers who have a more unique product review history rated this product an average of 8.6. 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


9.2
8.6


Read more about our Overlapping Review History 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.

Common Phrases in Reviews:
33 reviews
23 reviews
22 reviews
14 reviews
13 reviews
13 reviews
11 reviews
Show MoreShow Less


42 of the 434 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


9.1
8.8


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 Sample Reviews

16 of the 434 total reviews for this product mentioned the word "sample" within their review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews that use the word "sample"

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


9.3
8.8


Read more about our Sample Reviews test.


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