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LEMARCH Surface Pro Charger Laptop Charger, 44W 15V 2.58A Surface Power Supply Adapter for...
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From LEMARCH
This report was last updated 9/7/2019.
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 Overlapping Review History
WARN Reviewer Ease
WARN Word Count Comparison
WARN Phrase Repetition
WARN Reviewer Participation
PASS Rating Trend
PASS Unverified Purchases
PASS Suspicious Reviewers
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
Originally bought this for a friend who was asking for ... [Go to full review]
Aug 29, 2019
79%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 5.0)
Least Trusted Reviews
It’s in really good quality, one-day-delivery is fast, really useful, ... [Go to full review]
Aug 4, 2019
0%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 3.7)
- Overlapping Review History: reviewed 2 of 9 top products
- Overrepresented Participation (posted 17 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
10% also reviewed:
Upgraded 2019 Version Kitchen Knife Sharpener for... by TEMINICE
8% also reviewed:
Teeth Whitening Kit Xpassion Professional Tooth... by Xpassion
6% also reviewed:
ELEHOT Bluetooth Speaker Portable Wireless Stereo... by ELEHOT
6% also reviewed:
Power Bank, 26800mAh Portable Phone Charger,... by
Does not include products
from the same brand
from the same brand
39 of the 93 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 5.0 while the reviewers who have a more unique product review history rated this product an average of 4.2. 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.
Warn 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 4.4. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.5 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Word Count Comparison
-
- 52%
- 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 48 reviews (or 52%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn 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
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(3.5/5)
(3.5/5)
3 reviews
(5.0/5)
(5.0/5)
5 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
27 of the 93 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
-
- 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 74 reviewers (or 80%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Rating Trend
-
- 0%
- Created on high-volume days
We counted 93 reviews for this product over the span of 52 days, an average of 1.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 7 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
6 of the 93 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 Suspicious Reviewers
One-Hit Wonders
3 of the 93 reviewers have only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Never-Verified Reviewers
1 of the 93 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Take-Back Reviewers
5 of the 93 reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Single-Day Reviewers
1 of the 93 reviewers have written multiple reviews but posted all of them on a single day. 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.
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.