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ZeroEdge Dual-lens Car Camera, Full HD 1080P Large Rear View Mirror with 5-Inch Display Screen
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This report was last updated 11/12/2016.
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Report Info:
Last Updated: Nov 12, 2016
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Note: While Amazon.com claims 682 Ratings, we counted 569 Reviews available on their site.
Note: While we've examined all 569 reviews, our reviewer analysis is based on a sample of 253 reviewers.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: While we've examined all 569 reviews, our reviewer analysis is based on a sample of 253 reviewers.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Camera & Photo with authentic reviews:
Report Card
Warn Overall Grade
FAIL Rating Trend
FAIL Unverified Purchases
FAIL Incentivized Reviews
FAIL Suspicious Reviewers
FAIL Reviewer Participation
PASS Word Count Comparison
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Deleted Reviews
Most Trusted Reviews
Length:: 3:03 Mins The video produced is very soft and ... [Go to full review]
Sep 21, 2016
100%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (185 words)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Critical Reviewer (avg. rating: 2.8)
Least Trusted Reviews
I received this car recorder for free in order to ... [Go to full review]
Sep 10, 2015
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Admitted to receiving an incentive
- Never-Verified Reviewer
- Overrepresented Participation (posted 8 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Rating Trend
-
- 5%
- Created over 3 days
We counted 569 reviews for this product over the span of 425 days, an average of 1.3 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 31 reviews were created on just 3 days. The reviews on these high volume days have rated this product an average of 5.0 while reviews from other days have rated this product an average of 4.0. 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.
Fail Unverified Purchases
107 of the 569 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.9 while the verified purchasers have rated this product an average of 3.8. 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.
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.
Fail Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
29 of the 569 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. Incentivized reviews have rated this product an average of 4.9 while reviews that were not incentivized rated this product an average of 4.0. 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Fail Suspicious Reviewers
Never-Verified Reviewers
47 of a random sample of 253 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.9 while the reviewers who have written at least one verified purchase review rated this product an average of 3.9. 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.
Fail Reviewer Participation
-
- 34%
- 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 85 reviewers (or 34%) are within an overrepresented participation group. These reviews have rated this product an average of 4.5, while all other reviews have rated this product an average of 3.9. 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.
Pass Word Count Comparison
-
- 21%
- 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 122 reviews (or 21%) 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 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
18 reviews
15 reviews
37 reviews
25 reviews
32 reviews
5 reviews
8 reviews
22 reviews
12 reviews
17 reviews
Common Phrases in Titles:
20 reviews
11 reviews
17 reviews
66 of the 569 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:
4% also reviewed:
boostULTIMATE - #1 Rated Testosterone Booster... by boostULTIMATE
4% also reviewed:
Samsung Electronics EVO Micro SDXC with Adapter... by Samsung
3% also reviewed:
Samsung 850 EVO Parent by Samsung
3% also reviewed:
Solar String Lights,URPOWER 72ft 200 LED 8 Modes... by URPOWER
2% also reviewed:
Logitech Wireless Touch Keyboard K400 with... by Logitech
2% also reviewed:
ISELECTOR Bluetooth Stereo Headphones, Over Ear... by ISelector
39 of a random sample of 253 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 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 4.3, while the average ease score for reviewers in this category is 4.3.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
7 of a random sample of 253 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 Deleted Reviews
- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
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.