The Hidden Reality: Parallel Universes and the Deep Laws of the Cosmos
More product info
From Brian Greene
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Report Card
Most Trusted Reviews
TRUST
- Unverified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 4.7)
- Critical Reviewer (avg. rating: 3.6)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 5.0)
Analysis Details
One-Hit Wonders
53 of the 415 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.
Take-Back Reviewers
156 of the 415 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.
Single-Day Reviewers
10 of the 415 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 5.0 while all other reviewers 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.
We discovered a total of 6 deleted Reviews for this product, with an average rating of 4. 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.
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- 7%
- Created over 7 days
We counted 415 reviews for this product over the span of 2,996 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 7 days exceeding this threshold:In total, we found that 28 reviews were created on just 7 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
4.4 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
105 of the 415 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
104 of the 415 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.
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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
10% also reviewed:
The Elegant Universe: Superstrings, Hidden... by Brian Greene
8% also reviewed:
The Fabric of the Cosmos: Space, Time, and the... by Brian Greene
8% also reviewed:
A Universe from Nothing: Why There Is Something... by Lawrence M. Krauss
5% also reviewed:
The God Delusion by Richard Dawkins
5% also reviewed:
Their Finest Hour (The Second World War) by Churchill, Winston, Sir
5% also reviewed:
Why Evolution Is True by Jerry A. Coyne
5% also reviewed:
A Brief History of Time by Stephen Hawking
5% also reviewed:
Our Mathematical Universe: My Quest for the... by Max Tegmark
4% also reviewed:
The Martian: Classroom Edition: A Novel by Andy Weir
117 of the 415 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.
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- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
Brand Repeaters
24 of the 415 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.
1 of the 415 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. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.