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The Numbers Game: Why Everything You Know About Football is Wrong
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From Chris Anderson
This report was last updated 7/19/2018.
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 Card
Pass Overall Grade
WARN Suspicious Reviewers
WARN Phrase Repetition
WARN Reviewer Participation
PASS Rating Trend
PASS Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
Think again.My son n law is nuts about football, but ... [Go to full review]
Jul 5, 2013
100%
TRUST
TRUST
- Unverified Purchaser
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.9)
Least Trusted Reviews
We couldn't find any low-quality reviewsAnalysis Details
Warn Suspicious Reviewers
Take-Back Reviewers
1 of the 112 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.
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
2 reviews
(4.5/5)
(4.5/5)
3 reviews
(3.3/5)
(3.3/5)
3 reviews
(3.7/5)
(3.7/5)
5 reviews
(2.8/5)
(2.8/5)
2 reviews
(2.5/5)
(2.5/5)
2 reviews
(4.5/5)
(4.5/5)
3 reviews
(4.0/5)
(4.0/5)
2 reviews
(2.5/5)
(2.5/5)
3 reviews
(4.0/5)
(4.0/5)
Common Phrases in Titles:
17 reviews
(5.0/5)
(5.0/5)
2 reviews
(3.5/5)
(3.5/5)
3 reviews
(4.7/5)
(4.7/5)
41 of the 112 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn Reviewer Participation
-
- 87%
- 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 97 reviewers (or 87%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Rating Trend
-
- 3%
- Created over 1 day
We counted 112 reviews for this product over the span of 1,863 days, an average of 0.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 3 reviews were created on just 1 day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Unverified Purchases
25 of the 112 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
-
- 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:
4% also reviewed:
Kindle Paperwhite (5th generation), 6" High... by Amazon
4% also reviewed:
The Girl on the Train by Paula Hawkins
3% also reviewed:
So You've Been Publicly Shamed by Jon Ronson
3% also reviewed:
The Chimp Paradox: The Acclaimed Mind Management... by Prof Steve Peters
3% also reviewed:
The Signal and the Noise: The Art and Science of... by Nate Silver
3% also reviewed:
Think Like a Freak: Secrets of the Rogue Economist by Steven D. Levitt
3% also reviewed:
The Bone Clocks by David Mitchell
Does not include products
from the same brand
from the same brand
16 of the 112 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 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 4.4.
4.1 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
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.
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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. 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.
Pass Deleted Reviews
- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
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.