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Shark Rotator Powered Lift-Away Canister Vacuum (NR96)
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From SharkNinja
This report was last updated 10/14/2019.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Pass Overall Grade
FAIL Suspicious Reviewers
WARN Deleted Reviews
PASS Rating Trend
PASS Unverified Purchases
PASS Word Count Comparison
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Participation
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
I love how quiet it is, light weight and lots ... [Go to full review]
Jul 11, 2018
100%
TRUST
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 4.8)
Least Trusted Reviews
This product has quit working for us already! We just ... [Go to full review]
Dec 22, 2016
0%
TRUST
TRUST
- Verified Purchaser
- One-Hit Wonder
- Brand Monogamist (9 reviews for this brand; avg rating: 4.0)
- Critical Reviewer (avg. rating: 1.0)
Analysis Details
Fail Suspicious Reviewers
One-Hit Wonders
6 of the 278 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 3.0 while the reviewers who have posted more than one review have rated this product an average of 4.4. 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.
Take-Back Reviewers
95 of the 278 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.
Warn Deleted Reviews
We discovered a total of 9 deleted Reviews for this product, with an average rating of 4.8. 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.
Pass Rating Trend
-
- 0%
- Created on high-volume days
We counted 278 reviews for this product over the span of 1,631 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. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Unverified Purchases
18 of the 278 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.
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:
Show MoreShow Less
7 reviews
(4.1/5)
(4.1/5)
3 reviews
(4.7/5)
(4.7/5)
6 reviews
(4.8/5)
(4.8/5)
2 reviews
(4.0/5)
(4.0/5)
4 reviews
(4.5/5)
(4.5/5)
3 reviews
(4.7/5)
(4.7/5)
3 reviews
(4.0/5)
(4.0/5)
10 reviews
(5.0/5)
(5.0/5)
4 reviews
(4.8/5)
(4.8/5)
7 reviews
(4.9/5)
(4.9/5)
26 of the 278 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.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
2% also reviewed:
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2% also reviewed:
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2% also reviewed:
Kindle Keyboard, Wi-Fi, 6" E Ink Display -... by Amazon
2% also reviewed:
Fire TV Stick bundle with Echo Dot (2nd Gen) -... by Amazon
1% also reviewed:
Chapter Seven: Lost Boys by Joe Gonzalez
1% also reviewed:
Fitbit Charge 2 Heart Rate + Fitness Wristband by Fitbit
1% also reviewed:
for iPhone Adapter to 3.5 mm Headphone Jack... by GRAGUO
Does not include products
from the same brand
from the same brand
31 of the 278 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.
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 4.2.
4.2 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
14 of the 278 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.
1 of the 278 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. 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 Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.