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Clore Automotive Jump-N-Carry JNC660 1700 Peak Amp Jump Starter From Clore Automotive Report Feedback

Pass Reviews appear natural

Original:

5,505 Reviews

Adjusted:

5,178 Reviews

Rank in: Jump Starters
59%
75%

View/Edit Adjustment
How is this calculated
Report Last Updated: Dec 6, 2018
Show Report History
Update Available

Report Card

Click a test to jump to details

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
PASS Deleted Reviews

Most Trusted Reviews

I borrowed this from my neighbor twice now - and ... [Go to full review]
Jun 16, 2018      
100% TRUST
  • Unverified Purchaser
  • Never-Verified Reviewer
  • Take-Back Reviewer (2 deleted reviews; avg. rating: 5.0)
  • Easy Grader (avg. rating: 5.0)


Least Trusted Reviews

Mar 7, 2015      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Single-Day Reviewer (posted all reviews on Mar 7, 2015)
  • Take-Back Reviewer (1 deleted review; avg. rating: 5.0)
  • Overlapping Review History: reviewed 1 of 9 top products
  • Easy Grader (avg. rating: 4.9)


Analysis Details


Fail Suspicious Reviewers

Take-Back Reviewers


850 of the 5,505 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


4.6
4.5


Single-Day Reviewers


111 of the 5,505 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.7 while all other reviewers rated this product an average of 4.5. 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 single-day reviewers

from non-single-day reviewers


4.7
4.5


Read more about our Suspicious Reviewers test.

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

Does not include products
from the same brand


359 of the 5,505 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 4.5. 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


4.7
4.5


Read more about our Overlapping Review History test.

Warn Rating Trend

  • 11%
  • Created over 79 days

We counted 5,505 reviews for this product over the span of 4,422 days, an average of 1.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.

However, we see the following 79 days exceeding this threshold:In total, we found that 632 reviews were created on just 79 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.

from reviews created on high volume days

from reviews created on normal volume days


4.6
4.5


Read more about our Rating Trend test.

Pass Unverified Purchases

227 of the 5,505 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.

from unverified purchasers

from verified purchases


4.3
4.5


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.

Pass Phrase Repetition
  • 0%
  • Used substantial repetitive phrases
0 of the 5,505 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.

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.

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 4.3, while the average ease score for reviewers in this category is 4.3.

4.3 Product's Average Ease Score

4.3 Category's Average Ease Score


4.3
4.3


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


165 of the 5,505 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


4.6
4.5


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, or 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 the Deleted Reviews test here.


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