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Brigade Warning!:
Our algorithm has detected a large amount of suspicious negative reviews. Learn more about Review Brigades.
Warn Unnatural reviews possible

Original:

12,222 Reviews

Adjusted:

8,187 Reviews

Rank in: Protein Bars
61%
64%

View/Edit Adjustment
How is this calculated
Report Last Updated: Jul 16, 2017
Update Available
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Report Card

Click a test to jump to details

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

May 10, 2016      
50% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (1 deleted review; avg. rating: 3.0)
  • Critical Reviewer (avg. rating: 4.2)


Least Trusted Reviews

I honestly don't no why people claim that these are ... [Go to full review]
Jan 5, 2016      
0% TRUST
  • Unverified Purchaser
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jan 5, 2016)
  • Brand Loyalist (3 of 4 reviews for this brand; avg rating: 1.0)
  • Overlapping Review History: reviewed 1 of 9 top products
  • Overrepresented Participation (posted 4 reviews)
  • Critical Reviewer (avg. rating: 1.0)


Analysis Details

Note: While Amazon claims 12,222 reviews, we counted 12,161 available on their site.

Fail Rating Trend

  • 16%
  • Created over 111 days

We counted 12,161 reviews for this product over the span of 2,494 days, an average of 4.9 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 14 or fewer reviews on any given day.

However, we see the following 111 days exceeding this threshold:In total, we found that 1,943 reviews were created on just 111 days. The reviews on these high volume days have rated this product an average of 4.3 while reviews from other days 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 reviews created on high volume days

from reviews created on normal volume days


4.3
4.1


Read more about our Rating Trend test.

Fail Unverified Purchases

1,012 of the 12,161 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 3.5 while the verified purchasers have 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 unverified purchasers

from verified purchases


3.5
4.2


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 Suspicious Reviewers

Never-Verified Reviewers


174 of the 12,161 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 3.5 while the reviewers who have written at least one verified purchase review 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 never-verified reviewers

from reviewers with at least one verified purchase review


3.5
4.2


Take-Back Reviewers


1,549 of the 12,161 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 4.2 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


4.2
4.1


Single-Day Reviewers


784 of the 12,161 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 4.4 while all other reviewers 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 single-day reviewers

from non-single-day reviewers


4.4
4.1


Read more about our Suspicious Reviewers test.

Fail 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:
368 reviews
(3.0%)
165 reviews
(1.4%)
131 reviews
(1.1%)
318 reviews
(2.6%)
317 reviews
(2.6%)
322 reviews
(2.6%)
162 reviews
(1.3%)
421 reviews
(3.5%)
398 reviews
(3.3%)
Show MoreShow Less
Common Phrases in Titles:
823 reviews
(6.8%)
533 reviews
(4.4%)
260 reviews
(2.1%)
329 reviews
(2.7%)
223 reviews
(1.8%)
211 reviews
(1.7%)
375 reviews
(3.1%)
Show MoreShow Less


895 of the 12,161 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.5 while reviews without substantial repetitive phrases 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 reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.5
4.1


Read more about our Phrase Repetition test.

Fail Overlapping Review History
Does not include products
from the same brand


1,003 of the 12,161 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.4 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


4.4
4.1


Read more about our Overlapping Review History test.

Warn Brand Repeats

Brand Repeaters


3,158 of the 12,161 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


4.4
4.0


Brand Loyalists


275 of the 12,161 reviewers have reviewed multiple products but half or more of their reviews are for this brand. While this is more Brand Loyalists than we'd expect to see, the discrepancy in ratings between the Brand Loyalists and non-loyalists isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Loyalists

from Non-Loyalists


4.4
4.1


Read more about our Brand Repeats 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

  • 29%
  • 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 3502 reviewers (or 29%) 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


4.0
4.2


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 Skewed Helpfulness
We examined the average net helpfulness score of negative reviews against the average net helpfulness score of positive reviews. The net helpfulness score is the number of times a review has been marked as helpful minus the number of times a review has been marked as unhelpful. We could not find any statistically significant difference in average net helpfulness score between the negative reviews and positive reviews.

0.1 average net helpfulness for positive reviews

0.2 average net helpfulness for negative reviews


Read more about our Skewed Helpfulness 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.


4 of the 12,161 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from incentivized reviews

from non-incentivized reviews


3.3
4.1


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.

Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.
Read more about our Deleted Reviews test.