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U.F.O. [Blu-ray]
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From Revolver Entertainment
This report was last updated 10/7/2017.
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Report Info:
Last Updated: Oct 7, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Movies with authentic reviews:
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Warn Overall Grade
FAIL Rating Trend
FAIL Unverified Purchases
FAIL Suspicious Reviewers
FAIL Word Count Comparison
FAIL Overlapping Review History
FAIL Reviewer Participation
WARN Phrase Repetition
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
Great Product, Great Service. [Go to full review]
Jul 19, 2014
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (4 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 5.0)
Least Trusted Reviews
Foolishly I purchased UFO as I'm quite a fan of ... [Go to full review]
Jan 2, 2013
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- One-Hit Wonder
- Never-Verified Reviewer
- Overrepresented Participation (posted 1 Review)
- Critical Reviewer (avg. rating: 1.0)
Analysis Details
Fail Rating Trend
-
- 13%
- Created over 4 days
We counted 106 reviews for this product over the span of 1,498 days, an average of 0.1 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.
However, we see the following 4 days exceeding this threshold:In total, we found that 14 reviews were created on just 4 days. The reviews on these high volume days have rated this product an average of 1.4 while reviews from other days have rated this product an average of 2.2. 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 Unverified Purchases
41 of the 106 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 1.6 while the verified purchasers have rated this product an average of 2.4. 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 Suspicious Reviewers
Never-Verified Reviewers
14 of the 106 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 1.4 while the reviewers who have written at least one verified purchase review rated this product an average of 2.2. 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.
Take-Back Reviewers
2 of the 106 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, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.
Fail Word Count Comparison
-
- 23%
- 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 24 reviews (or 23%) are within an overrepresented word count group. These reviews have rated this product an average of 1.3, while all other reviews have rated this product an average of 2.3. 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
13% also reviewed:
The Amazing Spider-Man [Blu-ray 4K] [2012]... by Sony Pictures Home Entertainment
12% also reviewed:
Terminator Genisys by David Ellison
11% also reviewed:
Last Stand [Blu-ray] [2013] by Lions Gate Home Entertainment UK Ltd
10% also reviewed:
World War Z (Blu-ray 3D + Blu-ray) [Region Free] by Paramount Home Entertainment
10% also reviewed:
Jurassic World by Chris Pratt
9% also reviewed:
Battleship [Blu-ray] [Region Free] by Liam Neeson
9% also reviewed:
The Expendables 2 [DVD] by Lions Gate Home Ent. UK Ltd
Does not include products
from the same brand
from the same brand
29 of the 106 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 2.5 while the reviewers who have a more unique product review history rated this product an average of 1.9. 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
-
- 62%
- 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 66 reviewers (or 62%) are within an overrepresented participation group. These reviews have rated this product an average of 1.8, while all other reviews have rated this product an average of 2.6. 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 Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
28 of the 106 total reviews for this product use substantial repetitive phrases between them. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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 4.3.
3.8 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
15 of the 106 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.