The Wavewatcher's Companion
More product info
From Gavin Pretor-Pinney
Refresh the report to view the most up-to-date data available:
Refresh Report
Report Card











Most Trusted Reviews
TRUST
-
Verified Purchaser
-
Overlapping Review History: reviewed 2 of 9 top products
-
Critical Reviewer (avg. rating: 3.4)
Least Trusted Reviews
We couldn't find any low-quality reviews
Analysis Details

Single-Day Reviewers
6 of the 30 reviewers have written multiple reviews but posted all of them on a single day. While this is more Single-Day Reviewers than we'd expect to see, the discrepancy in ratings between the Single-Day Reviewers and all other reviewers isn't significant enough to rule out the possibility of it being due to random chance.

-
- 80%
- 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 24 reviewers (or 80%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

-
- 0%
- Created on high-volume days
Read more about our Rating Trend test.

6 of the 30 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.

-
- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.

-
- 0%
- Used substantial repetitive phrases
Read more about our Phrase Repetition test.

7% also reviewed:
1984 Nineteen Eighty-Four (Penguin Modern... by George Orwell
7% also reviewed:
The Name of the Wind (The Kingkiller Chronicle): 1 by Patrick Rothfuss
7% also reviewed:
Chinese unbranded battery tester by Lucky
7% also reviewed:
God And Guns by ROADRUNNER
7% also reviewed:
Striker Hand Tools 77629 Mechanical Carpenter... by Striker Hand Tools
7% also reviewed:
The Hunger Games Trilogy - 3 Book Set by The Hunger Games
7% also reviewed:
Lamentation (The Shardlake Series Book 6) by C. J. Sansom
7% also reviewed:
Samsung MZ-750500BW 750 EVO 500 GB 2.5 inch Solid... by Samsung
7% also reviewed:
Amazon.co.uk eGift Voucher (Various Designs) by Amazon EU S.à.r.l.
7 of the 30 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.

4.3 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.

Brand Repeaters

-
- 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.

- 0
- Reviews have been deleted
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.