Five Invitations
More product info
From Ostaseski
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Report Card
Most Trusted Reviews
TRUST
- Unverified Purchaser
- Easy Grader (avg. rating: 4.4)
Least Trusted Reviews
We couldn't find any low-quality reviewsAnalysis Details
4.6 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
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- 27%
- Created over 7 days
We counted 265 reviews for this product over the span of 1,177 days, an average of 0.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.
However, we see the following 7 days exceeding this threshold:In total, we found that 72 reviews were created on just 7 days. This is an excessively high number of reviews submitted on these high volume days.
One-Hit Wonders
47 of the 265 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, the discrepancy in ratings between the One-Hit Wonders and reviewers who have posted more than one review isn't significant enough to rule out the possibility of it being due to random chance.
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
(5.0/5)
53 of the 265 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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- 51%
- From reviewers with an overrepresented participation
We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 136 reviewers (or 51%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
98 of the 265 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.
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- 0%
- Have an overrepresented word count
Read more about our Word Count Comparison test.
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18 of the 265 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
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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.
- 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.