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Nightcrawlers (A Short Story)
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From Robert R. McCammon
This report was last updated 3/15/2018.
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Report Info:
Last Updated: Mar 15, 2018
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Horror with authentic reviews:
Report Card
Warn Overall Grade
FAIL Unverified Purchases
WARN Rating Trend
WARN Suspicious Reviewers
WARN Phrase Repetition
WARN Reviewer Participation
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
This is the first time I've read anything by this ... [Go to full review]
Jun 27, 2014
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 3.7)
- Critical Reviewer (avg. rating: 4.1)
Least Trusted Reviews
I love Robert McCammon, and it was a treat to ... [Go to full review]
Jul 20, 2014
0%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Overrepresented word count (17 words)
- Contains repetitive phrases (show)
- Brand Repeater (2 of 13 reviews for this brand; avg rating: 4.0)
- Overrepresented Participation (posted 13 Reviews)
- Easy Grader (avg. rating: 4.7)
Analysis Details
Fail Unverified Purchases
16 of the 64 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 4.5. 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.
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 Rating Trend
-
- 6%
- Created over 1 day
We counted 64 reviews for this product over the span of 1,101 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 1 day exceeding this threshold:In total, we found that 4 reviews were created on just 1 day. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.
Warn Suspicious Reviewers
Take-Back Reviewers
5 of the 64 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, it does not appear to have a significant impact on the overall rating.
Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
10 of the 64 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Warn Reviewer Participation
-
- 52%
- 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 33 reviewers (or 52%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Word Count Comparison
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- 27%
- 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 17 reviews (or 27%) 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.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
14% also reviewed:
Doctor Sleep: A Novel by Pocket Books
13% also reviewed:
Mr. Mercedes: A Novel (1) (The Bill Hodges... by Stephen King
13% also reviewed:
The Hunger Games (Hunger Games Trilogy, Book 1) by Suzanne Collins
9% also reviewed:
Finders Keepers: A Novel (The Bill Hodges Trilogy) by Stephen King
9% also reviewed:
Wolverton Station (Kindle Single) by Joe Hill
9% also reviewed:
The Neighbor (Short Story) (Kindle Single) by Dean Koontz
8% also reviewed:
The Dark Tower I: The Gunslinger (1) by Stephen King
8% also reviewed:
The Martian: Classroom Edition: A Novel by Andy Weir
Does not include products
from the same brand
from the same brand
30 of the 64 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.
Pass 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 4.2, while the average ease score for reviewers in this category is 4.3.
4.2 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
7 of the 64 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.
Pass Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
-
- 0%
- Admitted to receiving an incentive
We didn't detect any reviews that used language indicating they were incentivized.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive 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.
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.