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13 Hours: The Inside Account of What Really Happened in Benghazi
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From Mitchell Zuckoff
This report was last updated 11/27/2019.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: While Amazon.com claims 3,727 Ratings, we counted 3,745 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Pass Overall Grade
WARN 
Deleted Reviews
Deleted ReviewsWARN Rating Trend
Rating TrendWARN Suspicious Reviewers
Suspicious ReviewersWARN Reviewer Ease
Reviewer EaseWARN Word Count Comparison
Word Count ComparisonWARN Reviewer Participation
Reviewer ParticipationPASS Unverified Purchases
Unverified PurchasesPASS Phrase Repetition
Phrase RepetitionPASS Overlapping Review History
Overlapping Review HistoryPASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
Good [Go to full review]
May 23, 2019
100%
TRUST
TRUST
-
Verified Purchaser
-
Take-Back Reviewer (1 deleted Review; avg. rating: 5.0) -
Easy Grader (avg. rating: 4.4)
Critical Reviewer (avg. rating: 3.8)
Least Trusted Reviews
Excellent read. Hard to put this book down. No political ... [Go to full review]
Mar 3, 2016
0%
TRUST
TRUST
-
Verified Purchaser
-
Created on a high volume day -
Overrepresented word count (31 words) -
Contains repetitive phrases (
show)
-
Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
-
Overrepresented Participation (posted 17 Reviews) -
Easy Grader (avg. rating: 4.5)
Analysis Details
Warn Deleted Reviews
Deleted Reviews
We discovered a total of 45 deleted Reviews for this product, with an average rating of 5. 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.
5.0 average rating of deleted reviews
Warn Rating Trend
Rating Trend
-
- 39%
- Created over 99 days
We counted 3,745 reviews for this product over the span of 1,899 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 99 days exceeding this threshold:In total, we found that 1,460 reviews were created on just 99 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Suspicious Reviewers
Suspicious Reviewers
Take-Back Reviewers
1,017 of the 3,745 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.
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 4.5, 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.
4.5 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Word Count Comparison
Word Count Comparison
-
- 41%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 1,540 reviews (or 41%) 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.
Warn Reviewer Participation
Reviewer Participation
-
- 74%
- From reviewers with an overrepresented participation
We see the following 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 2789 reviewers (or 74%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
Unverified Purchases
350 of the 3,745 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 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:
Show MoreShow Less
103 reviews
(4.8/5)
(4.8/5)
94 reviews
(4.8/5)
(4.8/5)
110 reviews
(4.9/5)
(4.9/5)
70 reviews
(5.0/5)
(5.0/5)
45 reviews
(5.0/5)
(5.0/5)
54 reviews
(5.0/5)
(5.0/5)
44 reviews
(4.9/5)
(4.9/5)
57 reviews
(4.9/5)
(4.9/5)
37 reviews
(4.9/5)
(4.9/5)
57 reviews
(4.8/5)
(4.8/5)
Common Phrases in Titles:
148 reviews
(5.0/5)
(5.0/5)
338 of the 3,745 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 Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
6% also reviewed:
American Sniper: The Autobiography of the Most... by Chris Kyle
6% also reviewed:
Killing Patton: The Strange Death of World War... by Bill O'Reilly
3% also reviewed:
No Easy Day: The Firsthand Account of the Mission... by Mark Owen
3% also reviewed:
Killing the Rising Sun: How America Vanquished... by Bill O'Reilly
3% also reviewed:
Killing Jesus: A History by Bill O'Reilly
3% also reviewed:
Crisis of Character: A White House Secret Service... by Byrne, Gary J.
2% also reviewed:
Killing Reagan: The Violent Assault That Changed... by Bill O'Reilly
2% also reviewed:
Thomas Jefferson and the Tripoli Pirates: The... by Brian Kilmeade
Does not include products
from the same brand
from the same brand
811 of the 3,745 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.
Pass Brand Repeats
Brand Repeats
Brand Repeaters
22 of the 3,745 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.
-
- 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.