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Car retrovisione dell'automobile che inverte mahina di backup fotografica D impermeabile...
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From CAR ROVER
This report was last updated 3/14/2019.
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Report Card
Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Reviewer Ease
WARN Deleted Reviews
WARN Rating Trend
WARN Phrase Repetition
WARN Reviewer Participation
PASS Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
Cercavo uno starter di emergenza e ho trovato un tesoro............consegnato ... [Go to full review]
Aug 25, 2016
100%
TRUST
TRUST
- Verified Purchaser
- Overlapping Review History: reviewed 1 of 9 top products
- Critical Reviewer (avg. rating: 3.9)
Least Trusted Reviews
Luce ottima e di buona fattura, arrivate nella confezione integra. ... [Go to full review]
Dec 25, 2018
0%
TRUST
TRUST
- Verified Purchaser
- Contains repetitive phrases (show)
- Overrepresented Participation (posted 11 Reviews)
- Easy Grader (avg. rating: 4.6)
Analysis Details
Fail Suspicious Reviewers
One-Hit Wonders
71 of the 144 reviewers have only reviewed this product. This is an excessively large percentage of One-Hit Wonders which may indicate unnatural reviews.
Take-Back Reviewers
3 of the 144 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.
Fail 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 4.3. 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
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Deleted Reviews
We discovered a total of 2 deleted Reviews for this product, with an average rating of 4.5. 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.
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.
Warn Rating Trend
-
- 6%
- Created over 3 days
We counted 144 reviews for this product over the span of 1,169 days, an average of 0.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.
However, we see the following 3 days exceeding this threshold:In total, we found that 9 reviews were created on just 3 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.
Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
58 of the 144 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn Reviewer Participation
-
- 87%
- 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 125 reviewers (or 87%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
2 of the 144 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
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- 28%
- 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 41 reviews (or 28%) are within an overrepresented word count group. 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:
4% also reviewed:
TP-Link Archer T4U V3.0 Adattatore USB Scheda di... by TP-Link
2% also reviewed:
Philips 12972XVS2 - H7 X-Treme Vision - Lampadina... by Philips automotive lighting
2% also reviewed:
UGREEN Caricatore USB da Muro 2 Porte 17W 3.4A... by UGREEN
2% also reviewed:
SanDisk Ultra Fit Unità Flash, USB 3.0 da 32 GB... by SanDisk
2% also reviewed:
SanDisk Extreme PRO 64 GB, Scheda di Memoria... by SanDisk
2% also reviewed:
Crucial MX300 Interno da SSD 2TB, 2.5" -... by Crucial
21 of the 144 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 Repeaters
We didn't detect a substantial amount of Brand Repeaters.
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. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.