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Vita JYM From JYM Report Feedback

Fail Unnatural reviews detected

Original:

470 Reviews

Adjusted:

84 Reviews

95%
100%

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

Click a test to jump to details

FAIL Brand Repeats
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
FAIL Skewed Helpfulness
WARN Deleted Reviews
PASS Rating Trend
PASS Unverified Purchases
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Participation
PASS Sample Reviews
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Other analysis for this product:

Vita Jym From Jym

7.7
(Out of 10, after 2 reviews)

Most Trusted Reviews

7/10
Working on my second bottle. So overall its a good ... [Go to full review]
Jul 17, 2016     1 of 1 found this helpful.  
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 8.5)


Least Trusted Reviews

10/10
User did not leave written text for this review. [Go to full review]
Sep 23, 2015      
0% TRUST
  • Unverified Purchaser
  • Overrepresented word count (0 words)
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Sep 23, 2015)
  • 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 470 reviews, we counted 438 available on their site.

Fail Brand Repeats

Brand Repeaters


313 of the 438 reviewers have reviewed other products for this brand. This is an excessively large percentage of Brand Repeaters which may indicate unnatural reviews.

from Brand Repeaters

from Non-Repeaters


9.7
9.1


Brand Loyalists


234 of the 438 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


9.7
9.3


Brand Monogamists


153 of the 438 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


9.7
9.4


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

One-Hit Wonders


74 of the 438 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


8.9
9.6


Never-Verified Reviewers


13 of the 438 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 7.9 while the reviewers who have written at least one verified purchase review rated this product an average of 9.5. 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


7.9
9.5


Take-Back Reviewers


215 of the 438 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 9.6 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 9.3. 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 take-back reviewers

from reviewers without previously deleted reviews


9.6
9.3


Single-Day Reviewers


110 of the 438 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 9.8 while all other reviewers rated this product an average of 9.4. 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


9.8
9.4


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 9.2, 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.

9.2 Product's Average Ease Score

8.8 Category's Average Ease Score


9.2
8.8


Read more about our Reviewer Ease test.


Fail Word Count Comparison

  • 39%
  • 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 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 170 reviews (or 39%) are within an overrepresented word count group. These reviews have rated this product an average of 9.7, while all other reviews have rated this product an average of 9.3. 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 reviews with an overrepresented word count

from reviews with a properly represented word count


9.7
9.3


Read more about our Word Count Comparison test.

Fail 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 found that the negative reviews had an average net helpfulness score of -2.7 while the positive reviews had an average net helpfulness score of 0.1. Based on our statistical modeling, this discrepancy is significant enough to believe that the difference is not due to random chance, but possibly due to influence of unnatural voting patterns.

Example critical reviews

0.1 average net helpfulness for positive reviews

-2.7 average net helpfulness for negative reviews


Read more about our Skewed Helpfulness test.


Warn Deleted Reviews

We discovered a total of 5 deleted reviews for this product, with an average rating of 9.2. 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.

9.2 average rating of deleted reviews

9.2



Read more about our Deleted Reviews test.

Pass Rating Trend

  • 3%
  • Created over 2 days

We counted 438 reviews for this product over the span of 1,089 days, an average of 0.4 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 2 days exceeding this threshold:In total, we found that 11 reviews were created on just 2 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews created on high volume days

from reviews created on normal volume days


9.9
9.5


Read more about our Rating Trend test.

Pass Unverified Purchases

30 of the 438 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


8.8
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.

Pass Phrase Repetition
  • 0%
  • Used substantial repetitive phrases
0 of the 438 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.
Read more about our Phrase Repetition test.

Pass Overlapping Review History

4% also reviewed:
C4 Original by Cellucor

4% also reviewed:
ISO100 by Dymatize

3% also reviewed:
Xtend by SciVation

3% also reviewed:
Quest Bars by Quest Nutrition

3% also reviewed:
COR-Performance Whey by Cellucor

Does not include products
from the same brand


98 of the 438 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


9.4
9.5


Read more about our Overlapping Review History 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
  • 0%
  • Mentioned the word "Sample"
We didn't find the word "sample" used in any reviews
Read more about our Sample Reviews test.