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Nature's Pump Plant Based Pre Workout - All Natural Vegan & Keto Pre Workout for...
More product info From NutriChem Labs

Amazon Reviews for  Nature's Pump Plant Based Pre Workout - All Natural Vegan & Keto Pre Workout for Increasing Clean Energy & Focus, Nitric Oxide Booster & Performance - Brain Nootropic, BCAAs for Recovery- 20 Servings
Rating:
218 Ratings
167 Reviews
("Ratings" vs. "Reviews")
52% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
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Report Info:
Last Updated: Jul 21, 2022
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Note: While Amazon.com claims 218 Ratings, we counted 167 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

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

Most Trusted Reviews

I do love this product. I just wish that a ... [Go to full review]
Jul 26, 2020      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 3.3)


Least Trusted Reviews

This is the best tasting pre workout I have ever ... [Go to full review]
Jun 13, 2017      
0% TRUST
  • Unverified Purchaser
  • Overrepresented word count (61 words)
  • Contains repetitive phrases (show)
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jun 13, 2017)
  • Brand Monogamist (2 of 2 reviews for this brand; avg rating: 5.0)
  • Overrepresented Participation (posted 2 Reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Deleted Reviews

We discovered a total of 94 deleted Reviews for this product, with an average rating of 5. 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.

5.0 average rating of deleted reviews

5.0


Show distribution of deleted reviews

Fail Unverified Purchases

60 of the 167 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.8 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


4.8
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 Brand Repeats

Brand Repeaters


50 of the 167 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


4.8
4.2


Brand Loyalists


15 of the 167 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


5.0
4.3


Brand Monogamists


7 of the 167 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


5.0
4.4


Read more about our Brand Repeats test.

Fail Suspicious Reviewers

Never-Verified Reviewers


22 of the 167 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 5.0 while the reviewers who have written at least one verified purchase review rated this product an average of 4.3. 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


5.0
4.3


Take-Back Reviewers


69 of the 167 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from take-back reviewers

from reviewers without previously deleted reviews


4.2
4.5


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:
3 reviews
(5.0/5)
6 reviews
(4.8/5)
3 reviews
(5.0/5)
4 reviews
(5.0/5)
3 reviews
(5.0/5)
2 reviews
(5.0/5)
3 reviews
(5.0/5)
3 reviews
(3.7/5)
4 reviews
(5.0/5)
Show MoreShow Less
Common Phrases in Titles:
2 reviews
(5.0/5)
3 reviews
(5.0/5)
2 reviews
(5.0/5)
2 reviews
(5.0/5)
2 reviews
(5.0/5)
2 reviews
(5.0/5)
2 reviews
(5.0/5)
2 reviews
(5.0/5)
3 reviews
(5.0/5)
Show MoreShow Less


31 of the 167 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.7 while reviews without substantial repetitive phrases rated this product an average of 4.3. 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 substantial repetitive phrases

from reviews without substantial repetitive phrases


4.7
4.3


Read more about our Phrase Repetition test.

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

Does not include products
from the same brand


32 of the 167 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 5.0 while the reviewers who have a more unique product review history 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 reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


5.0
4.2


Read more about our Overlapping Review History test.

Warn Rating Trend

  • 5%
  • Created over 3 days

We counted 167 reviews for this product over the span of 1,937 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.

However, we see the following 3 days exceeding this threshold:In total, we found that 9 reviews were created on just 3 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.

from reviews created on high volume days

from reviews created on normal volume days


4.2
4.4


Read more about our Rating Trend test.

Warn 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 4.4, while the average ease score for reviewers in this category is 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.

4.4 Product's Average Ease Score

4.3 Category's Average Ease Score


4.4
4.3


Read more about our Reviewer Ease test.


Warn Reviewer Participation

  • 32%
  • 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 54 reviewers (or 32%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, the discrepancy in ratings between reviewers in an overrepresented participation groups and all other reviewers isn’t significant enough to rule out the possibility of it being due to random chance.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.6
4.3


Read more about our Reviewer Participation test.

Pass Word Count Comparison

  • 26%
  • 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 43 reviews (or 26%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.4
4.4


Read more about our Word Count Comparison 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.

  • 0%
  • Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.