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VicTop Ultra Slim USB External Slot DVD VCD CD RW Drive Burner Superdrive for Apple Macbook Pro Air...
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This report was last updated 4/24/2017.
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Last Updated: Apr 24, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Warn Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
WARN Unverified Purchases
WARN Incentivized Reviews
WARN Reviewer Ease
PASS Rating Trend
PASS Word Count Comparison
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Participation
PASS Brand Repeats
Most Trusted Reviews
Did not work on any of my disks but produced ... [Go to full review]
Feb 11, 2016
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.0)
Least Trusted Reviews
We couldn't find any low-quality reviewsAnalysis Details
Fail Deleted Reviews
We discovered a total of 3 deleted Reviews for this product, with an average rating of 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.
Fail Suspicious Reviewers
Take-Back Reviewers
6 of the 17 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Warn Unverified Purchases
12 of the 17 total reviews for this product are unverified purchases. While this is a higher percentage of unverified purchases than we'd expect to see, the discrepancy in ratings between the unverified purchases and verified purchases isn't significant enough to rule out the possibility of it being due to random chance.
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.
Warn Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
4 of the 17 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. While we could not find a statistically significant difference between the average rating of incentivized reviews and non-incentivized reviews, the presences of at least one incentivized review indicates that there may be more, since not all reviewers will disclose that they had received an incentive to post a 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.
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 4.7, 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.
4.7 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Rating Trend
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- 0%
- Created on high-volume days
We counted 17 reviews for this product over the span of 359 days, an average of 0.0 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. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Word Count Comparison
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- 0%
- Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.
Read more about our Word Count Comparison test.
Pass Phrase Repetition
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- 0%
- Used substantial repetitive phrases
0 of the 17 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.
Read more about our Phrase Repetition test.
Read more about our Phrase Repetition test.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
18% also reviewed:
D-Link DCS-935L mydlink Home HD 720P Monitor... by D-Link
18% also reviewed:
Fire TV Stick with Voice Remote | Streaming Media... by Amazon
12% also reviewed:
Waterproof Bluetooth Speakers,Geega Mini Wireless... by Geega
12% also reviewed:
Moyu Aolong V2 3x3 Speed Cube Enhanced Edition... by HIDNAWI
12% also reviewed:
AUKEY Wired Headphones with Bass Sound Stereo... by AUKEY
12% also reviewed:
Item Unavailable by
12% also reviewed:
Item Unavailable by
12% also reviewed:
AUKEY Bluetooth 4.1 Earphone in Ear Wireless IPx5... by Aukey
Does not include products
from the same brand
from the same brand
8 of the 17 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 Participation
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- 0%
- From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.
Read more about our Reviewer Participation test.
Pass Brand Repeats
Brand Repeaters
3 of the 17 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.