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Deeply Odd
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From imusti
This report was last updated 10/2/2017.
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Report Info:
Last Updated: Oct 2, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Horror with authentic reviews:
Report Card
Fail Overall Grade
FAIL 
Suspicious Reviewers
Suspicious ReviewersFAIL Reviewer Ease
Reviewer EaseFAIL Phrase Repetition
Phrase RepetitionFAIL Overlapping Review History
Overlapping Review HistoryWARN Deleted Reviews
Deleted ReviewsWARN Rating Trend
Rating TrendWARN Word Count Comparison
Word Count ComparisonWARN Reviewer Participation
Reviewer ParticipationPASS Unverified Purchases
Unverified PurchasesPASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
Excellent read? [Go to full review]
Sep 18, 2017
100%
TRUST
TRUST
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Unverified Purchaser
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Take-Back Reviewer (2 deleted Reviews; avg. rating: 4.5) -
Critical Reviewer (avg. rating: 3.6)
Least Trusted Reviews
Can't wait for the next book featuring Odd Thomas. Love ... [Go to full review]
Jul 9, 2013
0%
TRUST
TRUST
-
Verified Purchaser -
Created on a high volume day -
Contains repetitive phrases (
show)
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Overlapping Review History: reviewed 3 of 9 top products -
Overrepresented Participation (posted 6 Reviews) -
Easy Grader (avg. rating: 4.8)
Analysis Details
Fail Suspicious Reviewers
Suspicious Reviewers
Take-Back Reviewers
133 of the 1,958 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.
Single-Day Reviewers
49 of the 1,958 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 4.8 while all other reviewers 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.
Fail Reviewer Ease
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 4.4, while the average ease score for reviewers in this category is 4.3. 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.
4.4 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Phrase Repetition
Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Reviews:
Show MoreShow Less
58 reviews
31 reviews
223 reviews
87 reviews
78 reviews
23 reviews
18 reviews
24 reviews
28 reviews
32 reviews
455 of the 1,958 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.6 while reviews without substantial repetitive phrases 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.
Fail Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
15% also reviewed:
Saint Odd: An Odd Thomas Novel by Dean
14% also reviewed:
Odd Apocalypse: An Odd Thomas Novel by Dean Koontz
10% also reviewed:
Odd Interlude: A Special Odd Thomas Adventure by Dean Koontz
9% also reviewed:
Innocence: A Novel by Dean Koontz
6% also reviewed:
The City: A Novel by Dean Koontz
6% also reviewed:
Odd Hours: An Odd Thomas Novel by Dean Koontz
6% also reviewed:
Doctor Sleep: A Novel by Pocket Books
5% also reviewed:
Odd Thomas by Bantam
5% also reviewed:
Brother Odd (Odd Thomas) by Dean Koontz
763 of the 1,958 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.6 while the reviewers who have a more unique product review history rated this product an average of 4.3. 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 Deleted Reviews
Deleted Reviews
We discovered a total of 17 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.
3.8 average rating of deleted reviews
Warn Rating Trend
Rating Trend
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- 25%
- Created over 40 days
We counted 1,958 reviews for this product over the span of 1,645 days, an average of 1.2 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 40 days exceeding this threshold:In total, we found that 495 reviews were created on just 40 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Word Count Comparison
Word Count Comparison
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- 50%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 988 reviews (or 50%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn Reviewer Participation
Reviewer Participation
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- 62%
- 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 1208 reviewers (or 62%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
Unverified Purchases
272 of the 1,958 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.
Pass Brand Repeats
Brand Repeats
Brand Repeaters
229 of the 1,958 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
Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
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- 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.