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This report was last updated 1/31/2019.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Card
Fail Overall Grade
FAIL 
Suspicious Reviewers
Suspicious ReviewersFAIL Reviewer Ease
Reviewer EaseFAIL Word Count Comparison
Word Count ComparisonFAIL Phrase Repetition
Phrase RepetitionWARN Deleted Reviews
Deleted ReviewsWARN Rating Trend
Rating TrendWARN Reviewer Participation
Reviewer ParticipationPASS Unverified Purchases
Unverified PurchasesPASS Overlapping Review History
Overlapping Review HistoryPASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
Soluzione comoda ma, dopo il primo mese di fruizione ha ... [Go to full review]
Nov 24, 2018
100%
TRUST
TRUST
-
Verified Purchaser
-
Brand Repeater (2 of 10 reviews for this brand; avg rating: 3.0) -
Critical Reviewer (avg. rating: 3.3)
Least Trusted Reviews
Ottima... Per me la migliore di tutte [Go to full review]
Jan 13, 2019
0%
TRUST
TRUST
-
Verified Purchaser
-
Created on a high volume day -
Overrepresented word count (7 words) -
Contains repetitive phrases (
show)
-
One-Hit Wonder -
Overrepresented Participation (posted 1 review) -
Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Suspicious Reviewers
Suspicious Reviewers
One-Hit Wonders
3,993 of the 8,031 reviewers have only reviewed this product. This is an excessively large percentage of One-Hit Wonders which may indicate unnatural reviews.
Take-Back Reviewers
104 of the 8,031 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, it does not appear to have a significant impact on the overall rating.
Single-Day Reviewers
253 of the 8,031 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 4.8 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.
Fail Reviewer Ease
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 4.5, while the average ease score for reviewers in this category is 4.1. 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.
4.5 Product's Average Ease Score
4.1 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
Word Count Comparison
-
- 12%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 939 reviews (or 12%) are within an overrepresented word count group. These reviews have rated this product an average of 4.8, while all other reviews have 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.
Fail Phrase Repetition
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
432 reviews
(4.4/5)
(4.4/5)
192 reviews
(4.9/5)
(4.9/5)
336 reviews
(4.5/5)
(4.5/5)
186 reviews
(4.5/5)
(4.5/5)
231 reviews
(4.7/5)
(4.7/5)
87 reviews
(4.9/5)
(4.9/5)
84 reviews
(4.6/5)
(4.6/5)
248 reviews
(4.3/5)
(4.3/5)
281 reviews
(4.7/5)
(4.7/5)
214 reviews
(4.7/5)
(4.7/5)
1,786 of the 8,031 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.8 while reviews without substantial repetitive phrases 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.
Warn Deleted Reviews
Deleted Reviews
We discovered a total of 33 deleted reviews for this product, with an average rating of 4.1. 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.
4.1 average rating of deleted reviews
Warn Rating Trend
Rating Trend
-
- 39%
- Created over 63 days
We counted 8,031 reviews for this product over the span of 443 days, an average of 18.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 34 or fewer reviews on any given day.
However, we see the following 63 days exceeding this threshold:In total, we found that 3,164 reviews were created on just 63 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Reviewer Participation
Reviewer Participation
-
- 85%
- 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 6864 reviewers (or 85%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
Unverified Purchases
396 of the 8,031 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 Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
2% also reviewed:
TP-Link Ripetitore WiFi, Range Extender Universale by TP-Link
2% also reviewed:
Samsung Memorie MB-MC32GA EVO Plus Scheda microSD... by Samsung Memorie
1% also reviewed:
Samsung MZ-75E1T0B/EU SSD 850 EVO, 1 TB,... by Samsung
1% also reviewed:
AmazonBasics High-Speed HDMI Cable (Latest... by AmazonBasics
1% also reviewed:
Western Digital 1TB Elements Portatile, Hard Disk... by Western Digital
Does not include products
from the same brand
from the same brand
799 of the 8,031 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 Brand Repeats
Brand Repeats
Brand Repeaters
231 of the 8,031 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
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.
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.