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Tripwire (Jack Reacher, Book 3)
More product info
From Lee Child
This report was last updated 7/5/2018.
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:
Top products in Mystery with authentic reviews:
Report Card
Fail Overall Grade
FAIL 
Brand Repeats
Brand RepeatsFAIL Suspicious Reviewers
Suspicious ReviewersFAIL Reviewer Ease
Reviewer EaseFAIL Overlapping Review History
Overlapping Review HistoryWARN Deleted Reviews
Deleted ReviewsWARN Rating Trend
Rating TrendWARN Reviewer Participation
Reviewer ParticipationPASS Unverified Purchases
Unverified PurchasesPASS Word Count Comparison
Word Count ComparisonPASS Phrase Repetition
Phrase RepetitionPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
None of my kindle purchases have ever been added to ... [Go to full review]
May 31, 2016
100%
TRUST
TRUST
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Unverified Purchaser
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Critical Reviewer (avg. rating: 3.4)
show)
Least Trusted Reviews
Good read [Go to full review]
Oct 5, 2014
0%
TRUST
TRUST
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Verified Purchaser -
Created on a high volume day
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Single-Day Reviewer (posted all reviews on Oct 5, 2014) -
Brand Loyalist (2 of 3 reviews for this brand; avg rating: 5.0) -
Overlapping Review History: reviewed 1 of 9 top products -
Overrepresented Participation (posted 3 reviews) -
Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Brand Repeats
Brand Repeats
Brand Repeaters
1,574 of the 5,863 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
357 of the 5,863 reviewers have reviewed multiple products but half or more of their reviews are for this brand. This is an excessively large percentage of Brand Loyalists which may indicate unnatural reviews.
Fail Suspicious Reviewers
Suspicious Reviewers
Take-Back Reviewers
126 of the 5,863 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
327 of the 5,863 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 4.7 while all other reviewers rated this product an average of 4.5. 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 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 4.4, while the average ease score for reviewers in this category is 4.3. 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.
4.4 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
12% also reviewed:
Killing Floor: (Jack Reacher 1) by Lee Child
7% also reviewed:
The Enemy (Jack Reacher, Book 8) by Lee Child
5% also reviewed:
Personal: (Jack Reacher 19) by Lee Child
5% also reviewed:
Gone Tomorrow: (Jack Reacher 13) by Random House Audiobooks
5% also reviewed:
Never Go Back (Jack Reacher, Book 18) by Lee Child
5% also reviewed:
The Affair: A Jack Reacher Novel by Lee Child
4% also reviewed:
61 Hours: (Jack Reacher 14) by Lee Child
4% also reviewed:
Worth Dying For (Jack Reacher, Book 15) by Lee Child
4% also reviewed:
A Wanted Man (Jack Reacher, Book 17) by Lee Child
2,521 of the 5,863 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.6 while the reviewers who have a more unique product review history 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.
Warn Deleted Reviews
Deleted Reviews
We discovered a total of 66 deleted reviews for this product, with an average rating of 4.7. 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.
4.7 average rating of deleted reviews
Warn Rating Trend
Rating Trend
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- 31%
- Created over 240 days
We counted 5,863 reviews for this product over the span of 7,144 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 240 days exceeding this threshold:In total, we found that 1,820 reviews were created on just 240 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Reviewer Participation
Reviewer Participation
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- 42%
- 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 2490 reviewers (or 43%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
Pass Unverified Purchases
Unverified Purchases
630 of the 5,863 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 Word Count Comparison
Word Count Comparison
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- 0%
- Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.
Read more about our Word Count Comparison 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.
691 of the 5,863 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 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.
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- 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, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.