CZ Colt UpLULA - 9mm to 45ACP Maglula Uplula Pistol Speed Magazine Loader. Loads all* 9mm Luger,...
From MagLula 
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Pass Reviews appear natural
Original Rating:
14,721 Reviews
Adjusted Rating:
12,249 Reviews
| 100% |
| 100% |
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Report Card
Click a test to jump to details
FAIL 
Suspicious Reviewers
Suspicious ReviewersFAIL 
Reviewer Ease
Reviewer EaseFAIL 
Skewed Helpfulness
Skewed HelpfulnessWARN 
Rating Trend
Rating TrendWARN 
Reviewer Participation
Reviewer ParticipationPASS 
Unverified Purchases
Unverified PurchasesPASS 
Word Count Comparison
Word Count ComparisonPASS 
Phrase Repetition
Phrase RepetitionPASS 
Overlapping Review History
Overlapping Review HistoryPASS 
Brand Repeats
Brand RepeatsPASS 
Incentivized Reviews
Incentivized ReviewsPASS 
Deleted Reviews
Deleted Reviews
Most Trusted Reviews
Great loader. No more sore thumbs. I reviewed this on ... [Go to full review]
Apr 24, 2016
90%
TRUST
TRUST
-
Verified Purchaser -
Created on a high volume day
-
Take-Back Reviewer (6 deleted reviews; avg. rating: 3.5) -
Brand Repeater (2 of 87 reviews for this brand; avg rating: 4.0) -
Overlapping Review History: reviewed 1 of 9 top products -
Critical Reviewer (avg. rating: 4.3)
Least Trusted Reviews
We couldn't find any low-quality reviews
Analysis Details
Note: While Amazon claims 14,721 reviews, we counted 14,717 available on their site.
Fail Suspicious Reviewers
Suspicious Reviewers
Take-Back Reviewers
4,173 of the 14,717 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.
Fail Reviewer Ease
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 4.4. 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.
4.4 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Skewed Helpfulness
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 -0.1 while the positive reviews had an average net helpfulness score of 0.0. 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
Example critical reviews
0.0 average net helpfulness for positive reviews
-0.1 average net helpfulness for negative reviews
Read more about our Skewed Helpfulness test.
Warn Rating Trend
Rating Trend
-
- 24%
- Created over 210 days
We counted 14,717 reviews for this product over the span of 3,413 days, an average of 4.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 13 or fewer reviews on any given day.
However, we see the following 210 days exceeding this threshold:In total, we found that 3,485 reviews were created on just 210 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Reviewer Participation
Reviewer Participation
-
- 52%
- 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 7622 reviewers (or 52%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
Unverified Purchases
504 of the 14,717 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.
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 Word Count Comparison
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.
Read more about our Word Count Comparison test.
Pass Phrase Repetition
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:
168 reviews
(1.1%)
(1.1%)
129 of the 14,717 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.
Pass Overlapping Review History
Overlapping Review History
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2% also reviewed:
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1% also reviewed:
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1% also reviewed:
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1% also reviewed:
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1% also reviewed:
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Does not include products
from the same brand
from the same brand
2,181 of the 14,717 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.
Pass Brand Repeats
Brand Repeats
Brand Repeaters
367 of the 14,717 reviewers have reviewed other products for this brand. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Incentivized Reviews
Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
1 of the 14,717 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.
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
Deleted Reviews
- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
Read more about our Deleted Reviews test.
Read more about our Deleted Reviews test.