Brain Plasticity: The Ultimate Guide To Brain Plasticity! - Change Your Brain And Increase Your...
More product info
From Ryan Cooper
Refresh the report to view the most up-to-date data available:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.9)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Overrepresented word count (52 words)
- Overlapping Review History: reviewed 2 of 9 top products
- Easy Grader (avg. rating: 4.9)
Analysis Details
We discovered a total of 2 deleted Reviews for this product, with an average rating of 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.
13% also reviewed:
Alkaline Foods - A Guide for Your pH Balance Diet... by Jake Hargis
13% also reviewed:
Overcome Depression and End Your Suffering Now:... by Beau Norton
13% also reviewed:
Kindle Publishing To Make $14K+ Per Month & Build... by Muhammad N. Sikandar
8% also reviewed:
Job Interview Preparation: The Ultimate Resource... by Gary Cooper
8% also reviewed:
OXO Good Grips 0.3 Qt POP Container – Airtight... by OXO
8% also reviewed:
Bumble Bee White Crabmeat, 6 oz Can (Pack of 12)... by Bumble Bee
8% also reviewed:
My Boss is a Jerk: How to Survive & Thrive in... by Kathleen Rao
8% also reviewed:
Productivity and Time Management Techniques for... by B Nolan
8% also reviewed:
Raw Vegan Bodybuilding: How To Gain Muscle And... by Sivan Berko
7 of the 24 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.9 while the reviewers who have a more unique product review history rated this product an average of 3.7. 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.
-
- 38%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 9 reviews (or 38%) are within an overrepresented word count group. While this is more reviews from overrepresented word count groups than we'd expect to see, the discrepancy in ratings between reviews with overrepresented word groups and all other reviews isn’t significant enough to rule out the possibility of it being due to random chance.
-
- 0%
- Created on high-volume days
Read more about our Rating Trend test.
6 of the 24 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%
- Used substantial repetitive phrases
Read more about our Phrase Repetition test.
One-Hit Wonders
1 of the 24 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
2 of the 24 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
5 of the 24 reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Single-Day Reviewers
-
- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
2 of the 24 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.
-
- 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.