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CCTREE 3D Printer POM Wheel Plastic Pulley Linear Bearing for Creality CR-7,CR-8,CR-10,CR10S,CR-10...
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From CCTREE
This report was last updated 4/15/2022.
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.com claims 150 Ratings, we counted 32 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
FAIL Overlapping Review History
WARN Rating Trend
PASS Unverified Purchases
PASS Word Count Comparison
PASS Phrase Repetition
PASS Reviewer Participation
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
I bought these to replace my stock Ender 3 wheels. ... [Go to full review]
Feb 8, 2021
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.5)
Least Trusted Reviews
Put these bad boys on my ender3, perfect fit and ... [Go to full review]
Jun 18, 2018
3%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Take-Back Reviewer (1 deleted Review; avg. rating: 1.0)
- Brand Repeater (5 of 29 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.6)
Analysis Details
Fail Deleted Reviews
We discovered a total of 2 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:
- 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.
- We have no information on reviews that were never published in the first place.
- 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.
Fail Suspicious Reviewers
Take-Back Reviewers
17 of the 32 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
13% also reviewed:
3D Solutech Real Black 3D Printer PLA Filament... by 3D Solutech
13% also reviewed:
Creality Official Ender 3 Aluminum Extruder, 3D... by CHPOWER
9% also reviewed:
3D Solutech Silver Metal 3D Printer PLA Filament... by 3D Solutech
9% also reviewed:
HATCHBOX 3D Printer Filament, Dimensional... by HATCHBOX
9% also reviewed:
TIANSE Black PLA 3D Printer Filament for 3D... by TIANSE
9% also reviewed:
Superfila PLA 3D Printer Filament for Ender... by Superfila
9% also reviewed:
Stronghero3D PLA 3D Printer Filament 1.75mm... by Stronghero3D
Does not include products
from the same brand
from the same brand
14 of the 32 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.7 while the reviewers who have a more unique product review history rated this product an average of 3.3. 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.
Warn Rating Trend
-
- 13%
- Created over 2 days
We counted 32 reviews for this product over the span of 1,063 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.
However, we see the following 2 days exceeding this threshold:In total, we found that 4 reviews were created on just 2 days. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.
Pass Unverified Purchases
-
- 0%
- Unverified Purchases
0 of the 32 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.
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
-
- 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
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(3.0/5)
(3.0/5)
Common Phrases in Titles:
2 reviews
(3.5/5)
(3.5/5)
-
- 0%
- Used substantial repetitive phrases
0 of the 32 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.
Read more about our Phrase Repetition 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.
Read more about our Reviewer Participation 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 4.2, while the average ease score for reviewers in this category is 4.3.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
5 of the 32 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
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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.