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Westworld: The Complete First Season 4K Ultra HD (Limited Edition) [Blu-ray]
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Westworld: The Complete First Season 4K Ultra HD (Limited Edition) [Blu-ray] View product on Amazon.com
Amazon Reviews for Westworld: The Complete First Season 4K Ultra HD (Limited Edition) [Blu-ray]
Rating:
3,810 Ratings
2,850 Reviews
("Ratings" vs. "Reviews")
81% of potentially unnatural reviews removed (why?)
Adjusted:
548 Reviews



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Last Updated: Oct 20, 2020
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Note: While Amazon.com claims 3,810 Ratings, we counted 2,850 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

Fail Overall Grade
FAIL Rating Trend
FAIL Unverified Purchases
FAIL Suspicious Reviewers
FAIL Word Count Comparison
FAIL Phrase Repetition
FAIL Reviewer Participation
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews

Most Trusted Reviews

4/5
Enjoyable show
Enjoyed the show and looking forward season two. Interesting concept. [Go to full review]
Feb 4, 2020      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (1 deleted Review; avg. rating: 3.0)
  • Overlapping Review History: reviewed 1 of 9 top products
  • Easy Grader (avg. rating: 4.5)

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Least Trusted Reviews

5/5
Five Stars
Loved it!!! [Go to full review]
Jan 11, 2017      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Overrepresented word count (2 words)
  • Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
  • Overrepresented Participation (posted 6 Reviews)
  • Easy Grader (avg. rating: 4.8)

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Report inaccurate data

Analysis Details

Fail Rating Trend

  • 68%
  • Created over 59 days

We counted 2,850 reviews for this product over the span of 1,426 days, an average of 2.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 8 or fewer reviews on any given day.

However, we see the following 59 days exceeding this threshold:In total, we found that 1,943 reviews were created on just 59 days. The reviews on these high volume days have rated this product an average of 4.5 while reviews from other days have rated this product an average of 4.1. 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.

from reviews created on high volume days

from reviews created on normal volume days


4.5
4.1

Read more about our Rating Trend test.

Fail Unverified Purchases

327 of the 2,850 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 3.6 while the verified purchasers have rated this product an average of 4.5. 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.

from unverified purchasers

from verified purchases


3.6
4.5

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

One-Hit Wonders


172 of the 2,850 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 4.6 while the reviewers who have posted more than one review have rated this product an average of 4.4. 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.

from one-hit wonders

from reviewers with more than one review


4.6
4.4

Take-Back Reviewers


964 of the 2,850 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.3
4.4

Read more about our Suspicious Reviewers test.

Fail Word Count Comparison

  • 32%
  • 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 918 reviews (or 32%) are within an overrepresented word count group. These reviews have rated this product an average of 4.7, while all other reviews have 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.7
4.2

Read more about our Word Count Comparison test.

Fail 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:
can't wait for season 2

41 reviews
(5.0/5)
looking forward to season

26 reviews
(4.7/5)
can't wait for season

50 reviews
(5.0/5)
wait for season 2

48 reviews
(5.0/5)
Show MoreShow Less


65 of the 2,850 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases rated this product an average of 4.4. 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.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.9
4.4

Read more about our Phrase Repetition test.

Fail Reviewer Participation

  • 58%
  • 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 1659 reviewers (or 58%) are within an overrepresented participation group. These reviews have rated this product an average of 4.5, while all other reviews have 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.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.5
4.2

Read more about our Reviewer Participation test.

Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:


4% also reviewed:
The Man In The High Castle - Season 1 (4K UHD) by Alexa Davalos


3% also reviewed:
The Man in the High Castle Season 2 - Official... by Alexa Davalos


2% also reviewed:
Chapter Seven: Lost Boys by Joe Gonzalez


2% also reviewed:
Sneaky Pete - Season 1 by Giovanni Ribisi


2% also reviewed:
Game of Thrones: The Complete Sixth Season... by Chris Newman


2% also reviewed:
Fire TV Stick bundle with Echo Dot (2nd Gen) -... by Amazon


2% also reviewed:
Mr. Robot, Season 1 by Rami Malek


2% also reviewed:
Amazon Prime Video by Amazon.com


2% also reviewed:
Ex Machina by Domhnall Gleeson

Show More Show Less
Does not include products
from the same brand


479 of the 2,850 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.3
4.4

Read more about our Overlapping Review History test.

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 4.3, while the average ease score for reviewers in this category is 4.3.

4.3 Product's Average Ease Score

4.3 Category's Average Ease Score


4.3
4.3

Read more about our Reviewer Ease test.


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.

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:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about our Deleted Reviews test.