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Pedro's Pro Brush Bicycle Cleaning Kit (5-Piece)
More product info From Pedro's

Amazon Reviews for  Pedro's Pro Brush Bicycle Cleaning Kit (5-Piece)
Rating:
34 Ratings
34 Reviews
("Ratings" vs. "Reviews")
29% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card
Report Info:

Report Card

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

Most Trusted Reviews

these are good bike cleaning brushes. I really wish they'd ... [Go to full review]
Feb 23, 2014      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (3 deleted Reviews; avg. rating: 5.0)
  • Easy Grader (avg. rating: 4.4)


Least Trusted Reviews

4/5
Has all you need, rugged construction. Nice little bag to ... [Go to full review]
Jul 6, 2009      
0% TRUST
  • Unverified Purchaser
  • One-Hit Wonder
  • Never-Verified Reviewer
  • Critical Reviewer (avg. rating: 4.0)


Analysis Details

Fail Unverified Purchases

4 of the 34 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 2.3 while the verified purchasers 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 unverified purchasers

from verified purchases


2.3
4.1


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

One-Hit Wonders


4 of the 34 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.3 while the reviewers who have posted more than one review 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 one-hit wonders

from reviewers with more than one review


2.3
4.1


Never-Verified Reviewers


3 of the 34 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 2.3 while the reviewers who have written at least one verified purchase review 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 never-verified reviewers

from reviewers with at least one verified purchase review


2.3
4.1


Take-Back Reviewers


5 of the 34 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


4.8
3.8


Read more about our Suspicious Reviewers test.

Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.

Common Phrases in Titles:
2 reviews
2 reviews


6 of the 34 total reviews for this product use substantial repetitive phrases between them. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


3.2
4.1


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 47%
  • 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 16 reviewers (or 47%) 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


4.0
3.8


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 34 reviews for this product over the span of 3,194 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day. We didn't find any days exceeding this threshold.
Read more about our Rating Trend 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:

Does not include products
from the same brand


11 of the 34 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


4.4
3.7


Read more about our Overlapping Review History 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 4.1, while the average ease score for reviewers in this category is 4.3.

4.1 Product's Average Ease Score

4.3 Category's Average Ease Score


4.1
4.3


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


1 of the 34 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.

from Brand Repeaters

from Non-Repeaters


5.0
3.9


Read more about our Brand Repeats 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.

Pass Deleted Reviews
  • 0
  • Reviews have been deleted
We have not discovered any deleted reviews for this product.

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.