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Phase8
More product info From MuscleTech

Amazon Reviews for   Phase8
Rating:
4,083 Ratings
3,388 Reviews
("Ratings" vs. "Reviews")
84% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card
Report Info:
Last Updated: Jul 19, 2017
Note: While Bodybuilding.com claims 4,083 Ratings, we counted 3,388 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

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


Stringer Tank



Adjusted
Rating:
1 Review

Report Card

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

Most Trusted Reviews

9/10
One of the best tasting vanilla proteins ever...mixes well for ... [Go to full review]
Oct 21, 2013      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (2 deleted Reviews; avg. rating: 9.5)
  • Overlapping Review History: reviewed 2 of 9 top products
  • Critical Reviewer (avg. rating: 8.0)


Least Trusted Reviews

9/10
Just receveid a sample of the chocolate peanut butter. has ... [Go to full review]
Jun 14, 2014      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Admitted to receiving an incentive
  • Contains repetitive phrases (show)
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jun 14, 2014)
  • Brand Monogamist (2 of 2 reviews for this brand; avg rating: 8.5)
  • Overrepresented Participation (posted 2 Reviews)
  • Critical Reviewer (avg. rating: 8.5)


Analysis Details

Fail Rating Trend

  • 40%
  • Created over 62 days

We counted 3,388 reviews for this product over the span of 1,623 days, an average of 2.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 8 or fewer reviews on any given day.

However, we see the following 62 days exceeding this threshold:In total, we found that 1,353 reviews were created on just 62 days. The reviews on these high volume days have rated this product an average of 9.4 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


9.4
8.6


Read more about our Rating Trend test.

Fail Unverified Purchases

2,206 of the 3,388 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 9.3 while the verified purchasers have rated this product an average of 8.2. 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


9.3
8.2


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 Sample Reviews

214 of the 3,388 total reviews for this product mentioned the word "sample" within their review. The reviews that mention the word "sample" have rated this product an average of 9.2 while reviews that don't mention the word "sample" have rated this product an average of 8.9. 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 that use the word "sample"

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


9.2
8.9


Read more about our Sample Reviews test.

Fail Brand Repeats

Brand Repeaters


919 of the 3,388 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
8.8


Brand Loyalists


582 of the 3,388 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
8.8


Brand Monogamists


315 of the 3,388 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


9.5
8.8


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

One-Hit Wonders


1,574 of the 3,388 reviewers have only reviewed this product. This is an excessively large percentage of One-Hit Wonders which may indicate unnatural reviews.

from one-hit wonders

from reviewers with more than one review


9.0
8.8


Never-Verified Reviewers


1,928 of the 3,388 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 9.4 while the reviewers who have written at least one verified purchase review rated this product an average of 8.3. 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 never-verified reviewers

from reviewers with at least one verified purchase review


9.4
8.3


Take-Back Reviewers


440 of the 3,388 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


8.6
8.9


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 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:
151 reviews
97 reviews
45 reviews
Show MoreShow Less


149 of the 3,388 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 9.2 while reviews without substantial repetitive phrases rated this product an average of 8.9. 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


9.2
8.9


Read more about our Phrase Repetition test.

Warn Deleted Reviews

We discovered a total of 158 deleted Reviews for this product, with an average rating of 8.8. 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.

8.8 average rating of deleted reviews

8.8


Show distribution of deleted reviews

Warn Reviewer Participation

  • 78%
  • 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 2652 reviewers (or 78%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


8.9
8.8


Read more about our Reviewer Participation 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
Reviewers of this product have ALSO reviewed the following products:

5% also reviewed:
C4 Original by Cellucor

4% also reviewed:
COR-Performance Whey by Cellucor

4% also reviewed:
Combat Powder by MusclePharm

4% also reviewed:
N.O.-Xplode by BSN

4% also reviewed:
Post by True GRIT

3% also reviewed:
Protein by True GRIT

3% also reviewed:
Pre by True GRIT

Does not include products
from the same brand


800 of the 3,388 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


8.8
8.9


Read more about our Overlapping Review History test.