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Touch: The Science of Hand, Heart, and Mind
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From Linden, David J.
This report was last updated 9/8/2017.
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Report Info:
Last Updated: Sep 8, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Pass Overall Grade
FAIL
Brand Repeats

WARN
Reviewer Participation

PASS
Rating Trend

PASS
Unverified Purchases

PASS
Word Count Comparison

PASS
Phrase Repetition

PASS
Suspicious Reviewers

PASS
Overlapping Review History

PASS
Reviewer Ease

PASS
Incentivized Reviews

PASS
Deleted Reviews

Most Trusted Reviews
Enjoyable and informative. Just the right balance of technical and ... [Go to full review]
Jun 15, 2015
100%
TRUST
TRUST
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Unverified Purchaser
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Take-Back Reviewer (4 deleted Reviews; avg. rating: 5.0)
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Critical Reviewer (avg. rating: 3.8)
Least Trusted Reviews
David J. Linden has penned another winner. This book's title ... [Go to full review]
Feb 8, 2015
0%
TRUST
TRUST
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Unverified Purchaser
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Contains repetitive phrases (
show)
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Brand Repeater (2 of 8 reviews for this brand; avg rating: 5.0)
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Overrepresented Participation (posted 8 Reviews)
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Easy Grader (avg. rating: 4.5)
Analysis Details
Fail
Brand Repeats

Brand Monogamists
1 of the 34 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.
Warn
Reviewer Participation

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- 53%
- 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 18 reviewers (or 53%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass
Rating Trend

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- 0%
- Created on high-volume days
We counted 34 reviews for this product over the span of 818 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 2 or fewer reviews on any given day. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass
Unverified Purchases

11 of the 34 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

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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

Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Titles:
2 reviews
5 of the 34 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
Suspicious Reviewers

One-Hit Wonders
1 of the 34 reviewers have only reviewed this product. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Never-Verified Reviewers
3 of the 34 reviewers have never written a verified purchase review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Take-Back Reviewers
We didn't detect a substantial amount of Take-Back Reviewers.
Single-Day Reviewers
3 of the 34 reviewers have written multiple reviews but posted all of them on a single day. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass
Overlapping Review History

Reviewers of this product have ALSO reviewed the following products:
9% also reviewed:
48 Days to the Work You Love: Preparing for the... by Dan Miller
9% also reviewed:
The Brain's Way of Healing: Remarkable... by Norman Doidge
9% also reviewed:
Thing Explainer: Complicated Stuff in Simple Words by Randall Munroe
6% also reviewed:
Air Wick, Plug In Scented Oil 3 Refills, Lavender... by Air Wick
6% also reviewed:
The Never Never Sisters by L. Alison Heller
6% also reviewed:
Nintendo Wii Console by Nintendo
12 of the 34 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 4.2, while the average ease score for reviewers in this category is 4.4.
4.2 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
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.