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AmazonBasics Nylon CD/DVD Wallet (Black) From AmazonBasics Report Feedback

Pass Reviews appear natural

Original:

1,878 Reviews

Adjusted:

1,329 Reviews

84%
86%

View/Edit Adjustment
How is this calculated
Last Updated: Feb 21, 2017
Update Available
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Report Card

Click a test to jump to details

FAIL Suspicious Reviewers
WARN Deleted Reviews
WARN Reviewer Participation
PASS Rating Trend
PASS Unverified Purchases
PASS Word Count Comparison
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Skewed Helpfulness
PASS Incentivized Reviews
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Other analysis for this product:


Original:

288 Reviews


Adjusted:

249 Reviews

Most Trusted Reviews

Just what i needed. [Go to full review]
Jul 22, 2015      
100% TRUST
  • Verified Purchaser
  • Single-Day Reviewer (posted all reviews on Jul 22, 2015)
  • Critical Reviewer (avg. rating: 3.4)


Least Trusted Reviews

We couldn't find any low-quality reviews

Analysis Details

Note: While Amazon claims 1,878 reviews, we counted 1,446 available on their site.

Fail Suspicious Reviewers

Take-Back Reviewers


466 of the 1,446 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


4.7
4.6


Read more about our Suspicious Reviewers test.

Warn Deleted Reviews

We discovered a total of 19 deleted reviews for this product, with an average rating of 4.4. 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.

4.4 average rating of deleted reviews

4.4



Read more about our Deleted Reviews test.

Warn Reviewer Participation

  • 53%
  • 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 771 reviewers (or 53%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.6
4.6


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 2%
  • Created over 3 days

We counted 1,446 reviews for this product over the span of 1,162 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 3 days exceeding this threshold:In total, we found that 23 reviews were created on just 3 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews created on high volume days

from reviews created on normal volume days


4.8
4.6


Read more about our Rating Trend test.

Pass Unverified Purchases

67 of the 1,446 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


4.6
4.6


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 1,446 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 Overlapping Review History

2% also reviewed:
Amazon Fire TV Stick by

2% also reviewed:
Fire by Amazon

2% also reviewed:
Case Logic-1 by Case Logic

2% also reviewed:
Amazon Echo by Amazon

Does not include products
from the same brand


178 of the 1,446 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


4.7
4.6


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 4.4, while the average ease score for reviewers in this category is 4.4.

4.4 Product's Average Ease Score

4.4 Category's Average Ease Score


4.4
4.4


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


208 of the 1,446 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


4.7
4.6


Read more about our Brand Repeats test.

Pass 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 could not find any statistically significant difference in average net helpfulness score between the negative reviews and positive reviews.

2.9 average net helpfulness for positive reviews

2.5 average net helpfulness for negative reviews


Read more about our Skewed Helpfulness 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.