Harry Potter et les Reliques de la Mort (La série de livres Harry Potter t. 7)
More product info
From J.K. Rowling
Refresh the report to view the most up-to-date data available:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Most Trusted Reviews
TRUST
- Unverified Purchaser
- Brand Repeater (2 of 16 reviews for this brand; avg rating: 4.5)
- Easy Grader (avg. rating: 4.2)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Overrepresented word count (4 words)
- Contains repetitive phrases (show)
- Easy Grader (avg. rating: 4.6)
Analysis Details
One-Hit Wonders
30 of the 287 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.
Never-Verified Reviewers
84 of the 287 reviewers have never written a verified purchase review. While this is more Never-Verified Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Take-Back Reviewers
43 of the 287 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 4.8 while the reviewers who don't have any deleted reviews in their history 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.
4.4 Product's Average Ease Score
4.0 Category's Average Ease Score
Read more about our Reviewer Ease test.
-
- 32%
- 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 93 reviews (or 32%) are within an overrepresented word count group. While this is more reviews from overrepresented word count groups than we'd expect to see, the discrepancy in ratings between reviews with overrepresented word groups and all other reviews isn’t significant enough to rule out the possibility of it being due to random chance.
(1.0/5)
(5.0/5)
(4.1/5)
(3.8/5)
(4.5/5)
(4.5/5)
(5.0/5)
(4.2/5)
(4.9/5)
(5.0/5)
118 of the 287 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
-
- 5%
- Created over 4 days
We counted 287 reviews for this product over the span of 4,726 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 4 days exceeding this threshold:In total, we found that 13 reviews were created on just 4 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
139 of the 287 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.
17% also reviewed:
Harry Potter, I : Harry Potter à l'école... by J. K. Rowling
10% also reviewed:
Harry Potter, IV : Harry Potter et la Coupe de... by Gallimard-Jeunesse
4% also reviewed:
Saga Twilight - Tome 1 - Fascination by Stephenie Meyer
3% also reviewed:
Hunger Games - Tome 1 by Suzanne Collins
3% also reviewed:
Les Yeux jaunes des crocodiles - Prix Maison de... by Katherine Pancol
3% also reviewed:
Millénium, Tome 1 : Les hommes qui n'aimaient... by Inconnu
2% also reviewed:
Harry Potter et l'Enfant Maudit Parties un et... by J. K. Rowling
2% also reviewed:
L'Ame du mal by Pocket
2% also reviewed:
Le Petit Prince - Folio Junior by Antoine de Saint-Exupéry
80 of the 287 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.
-
- 0%
- From reviewers with an overrepresented participation
Read more about our Reviewer Participation test.
Brand Repeaters
6 of the 287 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.
-
- 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.