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The Obsession
More product info From Nora Roberts

The Obsession View product on Amazon.com
Amazon Reviews for The Obsession
Rating:
6,208 Ratings
6,207 Reviews
("Ratings" vs. "Reviews")
74% of potentially unnatural reviews removed (why?)
Adjusted:
1,599 Reviews



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Last Updated: Aug 18, 2018
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Note: While Amazon.com claims 6,208 Ratings, we counted 6,207 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

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Report Card

Fail Overall Grade
FAIL Reviewer Ease
FAIL Word Count Comparison
FAIL Phrase Repetition
WARN Deleted Reviews
WARN Rating Trend
WARN Brand Repeats
WARN Suspicious Reviewers
WARN Reviewer Participation
PASS Unverified Purchases
PASS Overlapping Review History
PASS Incentivized Reviews

Most Trusted Reviews

5/5
Even though I had guessed who the bad guy was
I ripped through this book in a day. Even though ... [Go to full review]
Aug 2, 2017      
100% TRUST
  • Unverified Purchaser
  • Take-Back Reviewer (2 deleted Reviews; avg. rating: 2.0)
  • Brand Repeater (6 of 187 reviews for this brand; avg rating: 4.8)
  • Critical Reviewer (avg. rating: 4.1)

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Least Trusted Reviews

5/5
Five Stars
I just loved it was wonderful to read couldn't put ... [Go to full review]
May 18, 2016      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (12 words)
  • Contains repetitive phrases (show)
  • Brand Loyalist (3 of 6 reviews for this brand; avg rating: 5.0)
  • Overrepresented Participation (posted 6 Reviews)
  • Easy Grader (avg. rating: 5.0)

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Report inaccurate data

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 4.3. 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.

4.5 Product's Average Ease Score

4.3 Category's Average Ease Score


4.5
4.3

Read more about our Reviewer Ease test.


Fail Word Count Comparison

  • 65%
  • 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 3 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 4,007 reviews (or 65%) are within an overrepresented word count group. These reviews have rated this product an average of 4.8, while all other reviews have rated this product an average of 4.6. 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.8
4.6

Read more about our Word Count Comparison test.

Fail 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:
couldn't put it down

350 reviews
(5.0/5)
nora roberts book

294 reviews
(4.6/5)
could not put it down

140 reviews
(5.0/5)
by nora roberts

133 reviews
(4.6/5)
hard to put down

114 reviews
(4.9/5)
put this book down

91 reviews
(5.0/5)
put the book down

90 reviews
(4.9/5)
nora roberts never

73 reviews
(4.9/5)
want to put it down

75 reviews
(4.9/5)
nora roberts books

142 reviews
(4.6/5)
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Common Phrases in Titles:
couldn't put it down

61 reviews
(5.0/5)


1,038 of the 6,207 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases rated this product an average of 4.7. 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.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.9
4.7

Read more about our Phrase Repetition test.

Warn Deleted Reviews

We discovered a total of 65 deleted Reviews for this product, with an average rating of 4.7. 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:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about our Deleted Reviews test.

4.7 average rating of deleted reviews

4.7

Show distribution of deleted reviews

Warn Rating Trend

  • 56%
  • Created over 84 days

We counted 6,207 reviews for this product over the span of 857 days, an average of 7.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 17 or fewer reviews on any given day.

However, we see the following 84 days exceeding this threshold:In total, we found that 3,496 reviews were created on just 84 days. This is an excessively high number of reviews submitted on these high volume days.

from reviews created on high volume days

from reviews created on normal volume days


4.8
4.7

Read more about our Rating Trend test.

Warn Brand Repeats

Brand Loyalists


205 of the 6,207 reviewers have reviewed multiple products but half or more of their reviews are for this brand. While this is more Brand Loyalists than we'd expect to see, the discrepancy in ratings between the Brand Loyalists and non-loyalists isn't significant enough to rule out the possibility of it being due to random chance.

from Brand Loyalists

from Non-Loyalists


4.8
4.7

Read more about our Brand Repeats test.

Warn Suspicious Reviewers

One-Hit Wonders


700 of the 6,207 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from one-hit wonders

from reviewers with more than one review


4.7
4.7

Take-Back Reviewers


263 of the 6,207 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.6
4.7

Read more about our Suspicious Reviewers test.

Warn Reviewer Participation

  • 86%
  • From reviewers with an overrepresented participation

We see the following 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 5334 reviewers (or 86%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.7
4.6

Read more about our Reviewer Participation test.

Pass Unverified Purchases

1,086 of the 6,207 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.

from unverified purchasers

from verified purchases


4.5
4.7

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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:


3% also reviewed:
The Girl on the Train: A Novel by Paula Hawkins


3% also reviewed:
The Nightingale: A Novel by Kristin Hannah


2% also reviewed:
Obsession in Death (In Death Series) by Robb, J. D.


2% also reviewed:
Devoted in Death by J. D. Robb


2% also reviewed:
Mean Streak by Sandra Brown


2% also reviewed:
Fifty Shades of Grey [LegacyTitleID: 17468888] by


2% also reviewed:
The Last Mile (Memory Man series) by David Baldacci

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Does not include products
from the same brand


1,040 of the 6,207 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.7
4.7

Read more about our Overlapping Review History test.

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.


13 of the 6,207 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from incentivized reviews

from non-incentivized reviews


4.2
4.7

Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.