Winning the Future: A 21st Century Contract with America
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From Newt Gingrich
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Top products in Economic Policy & Development with authentic reviews:
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.6)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Created on a high volume day
- Contains repetitive phrases (show)
- One-Hit Wonder
- Never-Verified Reviewer
- Easy Grader (avg. rating: 5.0)
Analysis Details
78 of the 103 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 3.8 while the verified purchasers have rated this product an average of 4.6. 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.
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.
One-Hit Wonders
13 of the 103 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.
Never-Verified Reviewers
43 of the 103 reviewers have never written a verified purchase review. While this is more Never-Verified Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Take-Back Reviewers
17 of the 103 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.
We discovered a total of 2 deleted Reviews for this product, with an average rating of 2.5. 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.
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- 33%
- Created over 15 days
We counted 103 reviews for this product over the span of 4,326 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 15 days exceeding this threshold:In total, we found that 34 reviews were created on just 15 days. This is an excessively high number of reviews submitted on these high volume days.
Brand Repeaters
27 of the 103 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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48 of the 103 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
12% also reviewed:
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9% also reviewed:
How to Talk to a Liberal (If You Must): The World... by Ann Coulter
9% also reviewed:
Godless: The Church of Liberalism by Ann Coulter
8% also reviewed:
Culture Warrior by Bill O'Reilly
8% also reviewed:
America Alone: The End of the World As We Know It by Steyn, Mark
7% also reviewed:
Do As I Say (Not As I Do): Profiles in Liberal... by Peter Schweizer
7% also reviewed:
Who's Looking Out for You? by Bill O'Reilly
7% also reviewed:
A Christmas Carol (DK Classics) by Charles Dickens
7% also reviewed:
Freakonomics: A Rogue Economist Explores the... by Steven D. Levitt
28 of the 103 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%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
4.1 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
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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.