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24 Days: How Two Wall Street Journal Reporters Uncovered the Lies that Destroyed Faith in Corporate...
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From Rebecca Smith
This report was last updated 8/31/2018.
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:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Industries with authentic reviews:
Report Card
Warn Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
WARN Rating Trend
WARN Unverified Purchases
WARN Phrase Repetition
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Participation
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
I thought the book was very good about keeping things ... [Go to full review]
Jan 21, 2008
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.9)
Least Trusted Reviews
The authors, both Wall Street Journal beat reporters, found themselves ... [Go to full review]
Aug 17, 2003
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- Critical Reviewer (avg. rating: 3.3)
Analysis Details
Fail Deleted Reviews
We discovered a total of 7 deleted Reviews for this product, with an average rating of 4. 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.
Fail Suspicious Reviewers
One-Hit Wonders
4 of the 33 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, the discrepancy in ratings between the One-Hit Wonders and reviewers who have posted more than one review isn't significant enough to rule out the possibility of it being due to random chance.
Take-Back Reviewers
11 of the 33 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Warn Rating Trend
-
- 6%
- Created over 1 day
We counted 33 reviews for this product over the span of 4,914 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 2 reviews were created on just 1 day. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.
Warn Unverified Purchases
23 of the 33 total reviews for this product are unverified purchases. While this is a higher percentage of unverified purchases than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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.
Warn 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
6 reviews
(4.0/5)
(4.0/5)
2 reviews
(4.5/5)
(4.5/5)
5 reviews
(4.6/5)
(4.6/5)
3 reviews
(4.3/5)
(4.3/5)
9 reviews
(4.4/5)
(4.4/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(2.0/5)
(2.0/5)
3 reviews
(4.7/5)
(4.7/5)
3 reviews
(3.7/5)
(3.7/5)
2 reviews
(3.0/5)
(3.0/5)
Common Phrases in Titles:
2 reviews
(4.0/5)
(4.0/5)
17 of the 33 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Pass Word Count Comparison
-
- 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
33% also reviewed:
The Wimpy Kid Movie Diary: How Greg Heffley Went... by Amulet Books
21% also reviewed:
The Tipping Point [Abridged, Audiobook]... by Malcolm Gladwell
18% also reviewed:
The World Is Flat [Updated and Expanded]: A Brief... by Friedman, Thomas L.
18% also reviewed:
Execution: The Discipline of Getting Things Done by Larry Bossidy
18% also reviewed:
Anatomy of Greed: The Unshredded Truth from an... by Brian Cruver
Does not include products
from the same brand
from the same brand
16 of the 33 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 Reviewer Participation
-
- 0%
- From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.
Read more about our Reviewer Participation 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 4.2, while the average ease score for reviewers in this category is 4.3.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
6 of the 33 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
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.