JFK Has Been Shot
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From Charles A. Crenshaw M.D.
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Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 4.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.6)
Least Trusted Reviews
We couldn't find any low-quality reviewsAnalysis Details
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- 12%
- Created over 2 days
We counted 34 reviews for this product over the span of 1,154 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day.
However, we see the following 2 days exceeding this threshold:In total, we found that 4 reviews were created on just 2 days. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.
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- 82%
- 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 28 reviewers (or 82%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
3 of the 34 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.
4 of the 34 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.
One-Hit Wonders
1 of the 34 reviewers have only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Never-Verified Reviewers
3 of the 34 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Take-Back Reviewers
Single-Day Reviewers
2 of the 34 reviewers have written multiple reviews but posted all of them on a single day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
12% also reviewed:
The Assassination of JFK: Minute by Minute by Jonathan Mayo
9% also reviewed:
Mrs. Kennedy and Me: An Intimate Memoir by Clint Hill
9% also reviewed:
The Final Years of Marilyn Monroe: The Shocking... by Keith Badman
6% also reviewed:
The Kennedy Conspiracy: 12 Startling Revelations... by Bill Sloan
6% also reviewed:
The Dark Side of Lyndon Baines Johnson by Joachim Joesten
6% also reviewed:
Coup d'etat: The assassination of President John... by Jerry Kroth
6% also reviewed:
1byone Wireless Doorbell Door Chime Kit, 1... by 1byone
6% also reviewed:
JFK: The Dead Witnesses by Craig Roberts
from the same brand
10 of the 34 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.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
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- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
- 0
- Reviews have been deleted
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.