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Butterfly: An emotionally charged and heartbreaking story of love and hope
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From Elle Harper
This report was last updated 5/26/2018.
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Report Info:
Last Updated: May 26, 2018
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Reviewer Ease
FAIL Reviewer Participation
WARN Rating Trend
WARN Unverified Purchases
WARN Incentivized Reviews
WARN Suspicious Reviewers
WARN Word Count Comparison
WARN Phrase Repetition
WARN Overlapping Review History
PASS Brand Repeats
PASS Deleted Reviews
Most Trusted Reviews
This book had the pages turning constantly. This is definitely ... [Go to full review]
May 30, 2014
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 4.2)
Least Trusted Reviews
Elle Harper (Sibel Hodge). WOWButterfly.From page 1 this book had ... [Go to full review]
Jan 29, 2014
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Overrepresented word count (126 words)
- Never-Verified Reviewer
- Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Overrepresented Participation (posted 67 Reviews)
- Easy Grader (avg. rating: 4.9)
Analysis Details
Fail Reviewer Ease
The ease score is the average rating for all reviews that a given reviewer submits. The average ease score for reviewers of this product is 4.5, while the average ease score for reviewers in this category is 4.2. 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.
4.5 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Reviewer Participation
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- 39%
- 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 16 reviewers (or 39%) 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 4.5. 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.
Warn Rating Trend
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- 15%
- Created over 2 days
We counted 41 reviews for this product over the span of 668 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 2 days exceeding this threshold:In total, we found that 6 reviews were created on just 2 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
Warn Unverified Purchases
27 of the 41 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.
Warn Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
5 of the 41 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is more than we would expect see; the presences of at least one incentivized review indicates that there may be more, since not all reviewers will disclose that they had received an incentive to post a review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Warn Suspicious Reviewers
Take-Back Reviewers
3 of the 41 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.
Warn Word Count Comparison
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- 73%
- 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 30 reviews (or 73%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
13 of the 41 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
20% also reviewed:
Fire Inside: A Chaos Novel by Kristen Ashley
17% also reviewed:
Wrecked by Priscilla West
17% also reviewed:
Look Behind You by Sibel Hodge
17% also reviewed:
Fifty Shades of Grey [LegacyTitleID: 17468888] by
17% also reviewed:
Breathe into Me by Sara Fawkes
15% also reviewed:
Beautiful Bastard (1) (The Beautiful Series) by Christina Lauren
15% also reviewed:
Down London Road (On Dublin Street Book 2) by Samantha Young
15% also reviewed:
Third Degree by Julie Cross
15% also reviewed:
Escaping Reality (The Secret Life of Amy Bensen... by Lisa Renee Jones
22 of the 41 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Pass Brand Repeats
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
Pass Deleted Reviews
- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
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.