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Swingline Auto Feed Paper Shredder, 80 Sheets, Cross-Cut, 1 User, Personal, Stack-and-Shred 80X... From Swingline Report Feedback

Brigade Warning!:
Our algorithm has detected a large amount of suspicious negative reviews. Learn more about Review Brigades.
Pass Reviews appear natural

Original:

409 Reviews

Adjusted:

357 Reviews

Rank in: Shredders
8%
6%

View/Edit Adjustment
How is this calculated
Report Last Updated: May 3, 2017
Update Available
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Report Card

Click a test to jump to details

FAIL Rating Trend
FAIL Suspicious Reviewers
FAIL Overlapping Review History
WARN Deleted Reviews
WARN Reviewer Participation
PASS Unverified Purchases
PASS Word Count Comparison
PASS Phrase Repetition
PASS Reviewer Ease
PASS Brand Repeats
PASS Skewed Helpfulness
PASS Incentivized Reviews
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Most Trusted Reviews

Unit overheated on first use with single sheet of paper. ... [Go to full review]
Nov 20, 2013      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 4.0)


Least Trusted Reviews

The tray works quite well for paper that is not ... [Go to full review]
Jan 17, 2014      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Take-Back Reviewer (1 deleted review; avg. rating: 5.0)
  • Overrepresented Participation (posted 5 reviews)
  • Easy Grader (avg. rating: 4.4)


Analysis Details


Fail Rating Trend

  • 5%
  • Created over 5 days

We counted 409 reviews for this product over the span of 1,884 days, an average of 0.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.

However, we see the following 5 days exceeding this threshold:In total, we found that 20 reviews were created on just 5 days. The reviews on these high volume days have rated this product an average of 3.7 while reviews from other days have rated this product an average of 3.0. 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 reviews created on high volume days

from reviews created on normal volume days


3.7
3.0


Read more about our Rating Trend test.

Fail Suspicious Reviewers

Never-Verified Reviewers


6 of the 409 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 1.5 while the reviewers who have written at least one verified purchase review rated this product an average of 3.1. 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


1.5
3.1


Take-Back Reviewers


97 of the 409 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 3.5 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 2.9. 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 take-back reviewers

from reviewers without previously deleted reviews


3.5
2.9


Read more about our Suspicious Reviewers test.

Fail Overlapping Review History


55 of the 409 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.6 while the reviewers who have a more unique product review history rated this product an average of 2.9. 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


3.6
2.9


Read more about our Overlapping Review History test.

Warn Deleted Reviews

We discovered a total of 1 deleted review 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.

5.0 average rating of deleted reviews

5.0



Read more about our Deleted Reviews test.

Warn Reviewer Participation

  • 43%
  • 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 174 reviewers (or 43%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


2.9
3.1


Read more about our Reviewer Participation test.

Pass Unverified Purchases

58 of the 409 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


2.5
3.1


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.

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

Common Phrases in Reviews:
6 reviews
(1.5%)
37 reviews
(9.0%)
24 reviews
(5.9%)
11 reviews
(2.7%)
4 reviews
(1.0%)
6 reviews
(1.5%)
10 reviews
(2.4%)
10 reviews
(2.4%)
5 reviews
(1.2%)
Show MoreShow Less
Common Phrases in Titles:
4 reviews
(1.0%)
3 reviews
(0.7%)
7 reviews
(1.7%)
Show MoreShow Less


31 of the 409 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.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


3.3
3.0


Read more about our Phrase Repetition 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 3.9, while the average ease score for reviewers in this category is 4.3.

3.9 Product's Average Ease Score

4.3 Category's Average Ease Score


3.9
4.3


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


36 of the 409 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


3.9
2.9


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.

-0.2 average net helpfulness for positive reviews

1.1 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.