The Coaching Habit: Say Less, Ask More & Change the Way You Lead Forever
More product info
From Michael Bungay Stanier
Refresh the report to view the most up-to-date data available:
Report Card
Most Trusted Reviews
We couldn't find any quality reviewsLeast Trusted Reviews
TRUST
- Unverified Purchaser
- Take-Back Reviewer (21 deleted Reviews; avg. rating: 3.8)
- Critical Reviewer (avg. rating: 3.8)
Analysis Details
-
- 5%
- Created over 7 days
We counted 1,511 reviews for this product over the span of 1,546 days, an average of 1.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.
However, we see the following 7 days exceeding this threshold:In total, we found that 76 reviews were created on just 7 days. The reviews on these high volume days have rated this product an average of 4.9 while reviews from other days have rated this product an average of 4.7. 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.
675 of the 1,511 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.8 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
370 of the 1,511 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 4.8 while the reviewers who have posted more than one review 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.
Never-Verified Reviewers
292 of the 1,511 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 4.9 while the reviewers who have written at least one verified purchase review 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.
(4.9/5)
(5.0/5)
(4.9/5)
(5.0/5)
29 of the 1,511 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 5.0 while reviews without substantial repetitive phrases rated this product an average of 4.7. 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.
-
- 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 1205 reviewers (or 80%) are within an overrepresented participation group. These reviews have rated this product an average of 4.8, while all other reviews have rated this product an average of 4.4. 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.
We discovered a total of 13 deleted Reviews for this product, with an average rating of 4.9. 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.
4.5 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
-
- 58%
- 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 3 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 882 reviews (or 58%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
2% also reviewed:
Start with Why: How Great Leaders Inspire... by Simon Sinek
1% also reviewed:
The One Thing: The Surprisingly Simple Truth... by Gary Keller 著
1% also reviewed:
Never Split the Difference: Negotiating As If... by Chris Voss
1% also reviewed:
What Got You Here Won't Get You There: How... by Marshall Goldsmith
1% also reviewed:
The 7 Habits Of Highly Effective People by STEPHEN R COVEY
1% also reviewed:
Grit: The Power of Passion and Perseverance by Angela Duckworth
1% also reviewed:
Drive: The Surprising Truth about What Motivates... by Riverhead Books
1% also reviewed:
Overcoming the Five Dysfunctions of a Team: A... by Lencioni, Patrick M.
1% also reviewed:
Triggers: Creating Behavior That Lasts - Becoming... by Marshall Goldsmith
109 of the 1,511 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.
Brand Repeaters
15 of the 1,511 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.
3 of the 1,511 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.