Thunderbolt Adapter 4K, [Mini DP V1.2 Version] Mini Displayport to HDMI/VGA/DVI Video Converter for... From TOPELEK Report Feedback
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FAIL Rating Trend
FAIL Brand Repeats
FAIL Reviewer Ease
FAIL Word Count Comparison
WARN Deleted Reviews
WARN Suspicious Reviewers
WARN Reviewer Participation
PASS Unverified Purchases
PASS Phrase Repetition
PASS Overlapping Review History
PASS Incentivized Reviews
Most Trusted Reviews
great device - use for output to cinema Mac display ... [Go to full review]
Nov 3, 2017
- Verified Purchaser
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
Easy to use, connects Mac to monitor. Works well. Happy ... [Go to full review]
Apr 13, 2017
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (12 words)
- Brand Monogamist (36 reviews for this brand; avg rating: 4.9)
- Overrepresented Participation (posted 7 reviews)
- Easy Grader (avg. rating: 5.0)
Fail Rating Trend
- Created over 14 days
We counted 651 reviews for this product over the span of 1,293 days, an average of 0.5 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 14 days exceeding this threshold:
Fail Brand Repeats
22 of the 651 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.
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 4.6, 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.
4.6 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
- 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:
Warn Deleted Reviews
We discovered a total of 19 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.
5.0 average rating of deleted reviews
Show distribution of deleted reviews
Warn Suspicious Reviewers
81 of the 651 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.
30 of the 651 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.
Warn Reviewer Participation
- 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:
Pass Unverified Purchases
47 of the 651 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 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:
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51 of the 651 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:
50 of the 651 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 Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
5 of the 651 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. 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 Incentivized Reviews test, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.