Peter Jennings Reporting - The Kennedy Assassination: Beyond Conspiracy
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From Mark Obenhaus
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Most Trusted Reviews
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 2.6)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Overrepresented word count (140 words)
- Contains repetitive phrases (show)
- Overrepresented Participation (posted 9 Reviews)
- Critical Reviewer (avg. rating: 3.0)
Analysis Details
17 of the 30 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 2.3 while the verified purchasers have rated this product an average of 3.9. 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.
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.
Take-Back Reviewers
2 of the 30 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.
Single-Day Reviewers
4 of the 30 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 4.8 while all other reviewers rated this product an average of 2.7. 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.
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- 30%
- 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 9 reviews (or 30%) are within an overrepresented word count group. While this is more reviews from overrepresented word count groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
13 of the 30 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
23% also reviewed:
Reclaiming History: The Assassination of... by Vincent Bugliosi
13% also reviewed:
Oswald: Assassin or Fall Guy? by Joachim Joesten
10% also reviewed:
The Warren Commission Report: Report of the... by President's Commission on The Assassination
10% also reviewed:
Killing Kennedy: The End of Camelot by Bill O'Reilly
10% also reviewed:
Thirteen Days (Infinifilm Edition) by Warner Manufacturing
10% also reviewed:
Four Days in November: The Assassination of... by Vincent Bugliosi
10% also reviewed:
Clip Plus 4 GB MP3 Player (Black) by SanDisk
10% also reviewed:
Parkland by Peter Landesman
15 of the 30 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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- 33%
- From reviewers with an overrepresented participation
We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 10 reviewers (or 33%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, the discrepancy in ratings between reviewers in an overrepresented participation groups and all other reviewers isn’t significant enough to rule out the possibility of it being due to random chance.
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- 0%
- Created on high-volume days
Read more about our Rating Trend test.
3.8 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.