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Personal: A Jack Reacher Novel, Cover may vary
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From Lee Child
This report was last updated 3/19/2021.
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Report Info:
Note: While Amazon.com claims 16,159 Ratings, we counted 8,813 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".
Top products in United States with authentic reviews:
Report Card
Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Word Count Comparison
FAIL Phrase Repetition
FAIL Overlapping Review History
WARN Deleted Reviews
WARN Rating Trend
WARN Brand Repeats
WARN Reviewer Participation
PASS Unverified Purchases
PASS Reviewer Ease
PASS Incentivized Reviews
Most Trusted Reviews
I would like to see this book turned into a ... [Go to full review]
Jul 25, 2018
100%
TRUST
TRUST
- Verified Purchaser
- Brand Repeater (10 of 182 reviews for this brand; avg rating: 4.9)
- Easy Grader (avg. rating: 4.5)
Least Trusted Reviews
Good, fast moviing suspense novel. Lee Child provides continuity between ... [Go to full review]
Nov 19, 2014
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Overrepresented word count (15 words)
- Contains repetitive phrases (show)
- Take-Back Reviewer (1 deleted Review; avg. rating: 4.0)
- Brand Repeater (3 of 8 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Overrepresented Participation (posted 8 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Suspicious Reviewers
Take-Back Reviewers
2,639 of the 8,813 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 4.0 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.8. 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.
Fail Word Count Comparison
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- 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 3,575 reviews (or 41%) are within an overrepresented word count group. These reviews have rated this product an average of 4.1, while all other reviews have rated this product an average of 3.8. 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.
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:
Show MoreShow Less
405 reviews
(3.6/5)
(3.6/5)
243 reviews
(3.7/5)
(3.7/5)
182 reviews
(4.0/5)
(4.0/5)
439 reviews
(3.8/5)
(3.8/5)
182 reviews
(4.0/5)
(4.0/5)
100 reviews
(4.7/5)
(4.7/5)
98 reviews
(3.8/5)
(3.8/5)
141 reviews
(3.9/5)
(3.9/5)
94 reviews
(3.7/5)
(3.7/5)
253 reviews
(3.7/5)
(3.7/5)
Common Phrases in Titles:
191 reviews
(3.6/5)
(3.6/5)
716 of the 8,813 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.1 while reviews without substantial repetitive phrases 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
12% also reviewed:
Make Me: A Jack Reacher Novel by Child, Lee
9% also reviewed:
Never Go Back (Jack Reacher) by Child, Lee
5% also reviewed:
The Burning Room (A Harry Bosch Novel Book 17) by Michael Connelly
5% also reviewed:
The Escape (John Puller Series Book 3) by David Baldacci
5% also reviewed:
Gray Mountain: A Novel by John Grisham
5% also reviewed:
Chapter Seven: Lost Boys by Joe Gonzalez
5% also reviewed:
Memory Man by David Baldacci
4% also reviewed:
The Target by David Baldacci
4% also reviewed:
Deadline (A Virgil Flowers Novel) by John Sandford
2,911 of the 8,813 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.0 while the reviewers who have a more unique product review history 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.
Warn Deleted Reviews
We discovered a total of 7 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.
Warn Rating Trend
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- 71%
- Created over 137 days
We counted 8,813 reviews for this product over the span of 2,398 days, an average of 3.7 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 11 or fewer reviews on any given day.
However, we see the following 137 days exceeding this threshold:In total, we found that 6,290 reviews were created on just 137 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Brand Repeats
Brand Repeaters
3,377 of the 8,813 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.
Brand Loyalists
207 of the 8,813 reviewers have reviewed multiple products but half or more of their reviews are for this brand. While this is more Brand Loyalists than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Warn Reviewer Participation
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- 55%
- 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 4834 reviewers (or 55%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
1,697 of the 8,813 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 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 4.1, while the average ease score for reviewers in this category is 4.2.
4.1 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
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.
4 of the 8,813 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.