Instinct
More product info
From James Patterson
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Report Card
Most Trusted Reviews
TRUST
- Unverified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 4.0)
- Brand Repeater (26 of 405 reviews for this brand; avg rating: 4.7)
- Overlapping Review History: reviewed 3 of 9 top products
- Easy Grader (avg. rating: 4.5)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (26 words)
- Contains repetitive phrases (show)
- Brand Loyalist (4 of 6 reviews for this brand; avg rating: 5.0)
- Overrepresented Participation (posted 6 Reviews)
- Easy Grader (avg. rating: 4.7)
Analysis Details
One-Hit Wonders
22 of the 830 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 4.8 while the reviewers who have posted more than one review have 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.
Take-Back Reviewers
273 of the 830 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.
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- 84%
- 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 4 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 701 reviews (or 84%) are within an overrepresented word count group. These reviews have rated this product an average of 4.4, while all other reviews have rated this product an average of 4.0. 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.
84 of the 830 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.6 while reviews without substantial repetitive phrases 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.
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- 33%
- Created over 33 days
We counted 830 reviews for this product over the span of 1,105 days, an average of 0.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.
However, we see the following 33 days exceeding this threshold:In total, we found that 276 reviews were created on just 33 days. This is an excessively high number of reviews submitted on these high volume days.
Brand Loyalists
21 of the 830 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, the discrepancy in ratings between the Brand Loyalists and non-loyalists isn't significant enough to rule out the possibility of it being due to random chance.
4.4 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
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- 77%
- From reviewers with an overrepresented participation
We see the following 4 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 643 reviewers (or 77%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
122 of the 830 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.
6% also reviewed:
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NYPD Red 2 by James Patterson
6% also reviewed:
Camino Island: A Novel by John Grisham
6% also reviewed:
The Fix (Memory Man series Book 3) by David Baldacci
6% also reviewed:
The Late Show (Renee Ballard Series Book 1) by Michael Connelly
5% also reviewed:
The Last Mile (Memory Man series) by David Baldacci
5% also reviewed:
Memory Man by David Baldacci
4% also reviewed:
Long Road to Mercy (An Atlee Pine Thriller, 1) by David Baldacci
4% also reviewed:
The Wrong Side of Goodbye: Harry Bosch, Book 19 by Michael Connelly
211 of the 830 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%
- 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.