The Great Eight: How to Be Happy (Even When You Have Every Reason to be Miserable)
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From Scott Hamilton
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Most Trusted Reviews
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Contains repetitive phrases (show)
- Never-Verified Reviewer
- Single-Day Reviewer (posted all reviews on Apr 27, 2009)
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 5.0)
Analysis Details
Never-Verified Reviewers
45 of the 159 reviewers have never written a verified purchase review. While this is more Never-Verified Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Take-Back Reviewers
41 of the 159 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.
Single-Day Reviewers
4 of the 159 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 5.0 while all other reviewers rated this product an average of 4.0. 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 5 deleted Reviews for this product, with an average rating of 3.8. 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.
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- 20%
- Created over 10 days
We counted 159 reviews for this product over the span of 2,979 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 10 days exceeding this threshold:In total, we found that 32 reviews were created on just 10 days. This is an excessively high number of reviews submitted on these high volume days.
100 of the 159 total reviews for this product are unverified purchases. While this is a higher percentage of unverified purchases than we'd expect to see, it does not appear to have a significant impact on the overall rating.
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.
114 of the 159 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
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- 21%
- 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 33 reviews (or 21%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
23% also reviewed:
By Andy Andrews: The Noticer: Sometimes, all a... by -Thomas Nelson-
14% also reviewed:
Fearless by Max Lucado
8% also reviewed:
Outlive Your Life: You Were Made to Make A... by Lucado, Max
7% also reviewed:
The Hole in Our Gospel: What Does God Expect of... by Richard Stearns
7% also reviewed:
Fearless: Imagine Your Life Without Fear by Max Lucado
7% also reviewed:
Word of Promise Next Generation - New Testament:... by Thomas Nelson
7% also reviewed:
His Name is Jesus: The Promise of God's Love... by Max Lucado
7% also reviewed:
TiffenUV Protection Filter by Tiffen
6% also reviewed:
Find Your Strongest Life: What the Happiest and... by Thomas Nelson
61 of the 159 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.
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- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
4.3 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
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- 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.