Thor: The Dark World
From Walt Disney Studios Home Entertainment 
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FAIL 
Suspicious Reviewers
Suspicious ReviewersFAIL 
Overlapping Review History
Overlapping Review HistoryWARN 
Deleted Reviews
Deleted ReviewsWARN 
Rating Trend
Rating TrendWARN 
Reviewer Ease
Reviewer EasePASS 
Unverified Purchases
Unverified PurchasesPASS 
Word Count Comparison
Word Count ComparisonPASS 
Phrase Repetition
Phrase RepetitionPASS 
Reviewer Participation
Reviewer ParticipationPASS 
Brand Repeats
Brand RepeatsPASS 
Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
I just viewed Thor...The Dark World, last night on FXNow.And ... [Go to full review]
Mar 13, 2018
100%
TRUST
TRUST
-
Unverified Purchaser
-
Critical Reviewer (avg. rating: 4.0)
Verified Purchaser
Least Trusted Reviews
Enthralling visuals, but not as exciting plot-wise compared to Cap's ... [Go to full review]
Jun 14, 2015
0%
TRUST
TRUST
-
Unverified Purchaser
-
Never-Verified Reviewer -
Single-Day Reviewer (posted all reviews on Jun 14, 2015) -
Overlapping Review History: reviewed 2 of 9 top products -
Easy Grader (avg. rating: 5.0)
Analysis Details
Note: While Amazon.com claims 4,436 reviews, we counted 4,435 available on their site.
Fail Suspicious Reviewers
Suspicious Reviewers
Never-Verified Reviewers
58 of the 4,435 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 3.6 while the reviewers who have written at least one verified purchase review rated this product an average of 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.
Take-Back Reviewers
702 of the 4,435 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 4.4 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 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.
Single-Day Reviewers
88 of the 4,435 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.5 while all other reviewers rated this product an average of 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.
Fail Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
11% also reviewed:
Captain America: The Winter Soldier (Plus Bonus... by Victoria Alonso
10% also reviewed:
Thor [Blu-ray] by BUENA VISTA-MARVEL
10% also reviewed:
Guardians of the Galaxy (Theatrical) by James Gunn
9% also reviewed:
Marvel's The Avengers by Robert Downey Jr.
9% also reviewed:
Iron Man 3 (plus bonus features) by Shane Black
8% also reviewed:
The Hunger Games: Catching Fire by Simon Beaufoy
8% also reviewed:
The Hobbit: The Desolation of Smaug (Extended... by Peter Jackson
8% also reviewed:
Man of Steel (Two-Disc Special Edition DVD) by Henry Cavill
8% also reviewed:
Star Trek Into Darkness by J. J. Abrams
1,735 of the 4,435 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.5 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 Deleted Reviews
Deleted Reviews
We discovered a total of 140 deleted reviews for this product, with an average rating of 4.6. 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.
4.6 average rating of deleted reviews
Warn Rating Trend
Rating Trend
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- 38%
- Created over 75 days
We counted 4,435 reviews for this product over the span of 1,941 days, an average of 2.3 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 9 or fewer reviews on any given day.
However, we see the following 75 days exceeding this threshold:In total, we found that 1,707 reviews were created on just 75 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Reviewer Ease
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 4.3, while the average ease score for reviewers in this category is 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Unverified Purchases
Unverified Purchases
425 of the 4,435 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 Word Count Comparison
Word Count Comparison
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- 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 1,036 reviews (or 23%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Phrase Repetition
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:
105 reviews
(4.3/5)
(4.3/5)
43 of the 4,435 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 Reviewer Participation
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 Repeats
Brand Repeaters
76 of the 4,435 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
Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
1 of the 4,435 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.