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Vemont Cámara Deportiva 1080P HD Impermeable 30M Pantalla de 2.0 Lente de Gran Angular de...
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From VEMONT
This report was last updated 7/16/2020.
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Report Card
Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Phrase Repetition
FAIL Overlapping Review History
FAIL Reviewer Participation
WARN Rating Trend
WARN Word Count Comparison
PASS Unverified Purchases
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
Lo mejor de esta cámara es que puedes colocarla en ... [Go to full review]
Nov 27, 2018
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.4)
Least Trusted Reviews
La reproducción en un ordenador se congela la imagen, puede ... [Go to full review]
Jul 5, 2020
0%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (21 words)
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
- Overrepresented Participation (posted 2 Reviews)
- Critical Reviewer (avg. rating: 3.0)
Analysis Details
Fail Suspicious Reviewers
One-Hit Wonders
84 of the 671 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.5 while the reviewers who have posted more than one review have rated this product an average of 3.5. 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.
Take-Back Reviewers
54 of the 671 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 4.2 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.3. 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.
Fail 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
16 reviews
(4.4/5)
(4.4/5)
12 reviews
(3.5/5)
(3.5/5)
34 reviews
(3.9/5)
(3.9/5)
55 reviews
(3.4/5)
(3.4/5)
24 reviews
(3.0/5)
(3.0/5)
9 reviews
(3.3/5)
(3.3/5)
8 reviews
(4.9/5)
(4.9/5)
21 reviews
(3.8/5)
(3.8/5)
20 reviews
(3.9/5)
(3.9/5)
6 reviews
(4.3/5)
(4.3/5)
224 of the 671 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 3.8 while reviews without substantial repetitive phrases rated this product an average of 3.2. 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
3% also reviewed:
SanDisk Ultra Android - Tarjeta de Memoria by SanDisk
1% also reviewed:
YAMAY Pulsera Actividad con Pulsómetro Mujer... by YAMAY
1% also reviewed:
Auriculares Gaming Premium Stereo con Microfono... by FGDFG
1% also reviewed:
Apeman A80, Cámara de acción 4K Ultra HD, (2,0... by APEMAN
1% also reviewed:
TP-Link RE300 AC1200 - Repetidor de WiFi... by TP-Link
1% also reviewed:
Auriculares Estereo Bluetooth 5.0 SoundPeats de... by SoundPEATS
1% also reviewed:
Amazon Brand - Umi Auriculares de botón... by Umi
Does not include products
from the same brand
from the same brand
72 of the 671 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.2 while the reviewers who have a more unique product review history rated this product an average of 3.3. 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.
Fail Reviewer Participation
-
- 80%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 537 reviewers (or 80%) are within an overrepresented participation group. These reviews have rated this product an average of 3.2, while all other reviews have rated this product an average of 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.
Warn Rating Trend
-
- 16%
- Created over 17 days
We counted 671 reviews for this product over the span of 1,170 days, an average of 0.6 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 4 or fewer reviews on any given day.
However, we see the following 17 days exceeding this threshold:In total, we found that 108 reviews were created on just 17 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Word Count Comparison
-
- 51%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 345 reviews (or 51%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Pass Unverified Purchases
36 of the 671 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 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 3.8, while the average ease score for reviewers in this category is 4.2.
3.8 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
1 of the 671 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.
-
- 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.
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.