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Kindle Fire HD 7", HD Display (Previous Generation - 3rd)
More product info From Amazon Report Feedback


Rating:
18,197 Reviews
71% of potentially unnatural reviews removed (Why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Report Card

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

Most Trusted Reviews

It was bought fir my 90 year old mom who ... [Go to full review]
Aug 5, 2014      
50% TRUST
  • Unverified Purchaser
  • Overrepresented word count (19 words)
  • Take-Back Reviewer (1 deleted review; avg. rating: 1.0)
  • Overrepresented Participation (posted 4 reviews)
  • Critical Reviewer (avg. rating: 2.5)


Least Trusted Reviews

I travel a lot, and I read a lot, so ... [Go to full review]
Feb 15, 2014      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Contains repetitive phrases (show)
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Feb 15, 2014)
  • Brand Monogamist (2 of 2 reviews for this brand; avg rating: 5.0)
  • Overrepresented Participation (posted 2 reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Rating Trend

  • 68%
  • Created over 218 days

We counted 18,197 reviews for this product over the span of 1,699 days, an average of 10.7 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 23 or fewer reviews on any given day.

However, we see the following 218 days exceeding this threshold:In total, we found that 12,370 reviews were created on just 218 days. The reviews on these high volume days have rated this product an average of 4.3 while reviews from other days have rated this product an average of 3.9. 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 created on high volume days

from reviews created on normal volume days


4.3
3.9


Read more about our Rating Trend test.

Fail Suspicious Reviewers

One-Hit Wonders


2,807 of the 18,197 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


3.8
4.2


Never-Verified Reviewers


571 of the 18,197 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 3.4 while the reviewers who have written at least one verified purchase review rated this product an average of 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.

from never-verified reviewers

from reviewers with at least one verified purchase review


3.4
4.2


Take-Back Reviewers


881 of the 18,197 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.2
4.1


Single-Day Reviewers


661 of the 18,197 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 4.4 while all other reviewers rated this product an average of 4.1. 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 single-day reviewers

from non-single-day reviewers


4.4
4.1


Read more about our Suspicious Reviewers test.

Fail Word Count Comparison

  • 25%
  • 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 4,552 reviews (or 25%) are within an overrepresented word count group. These reviews have rated this product an average of 4.5, while all other reviews have rated this product an average of 4.0. 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


4.5
4.0


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:
834 reviews
1440 reviews
271 reviews
414 reviews
207 reviews
340 reviews
286 reviews
Show MoreShow Less
Common Phrases in Titles:
332 reviews
406 reviews
293 reviews
338 reviews
509 reviews
846 reviews
Show MoreShow Less


1,202 of the 18,197 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.4 while reviews without substantial repetitive phrases rated this product an average of 4.1. 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


4.4
4.1


Read more about our Phrase Repetition test.

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

3% also reviewed:
Candy Crush Saga by King

2% also reviewed:
Netflix by Netflix, Inc

Does not include products
from the same brand


2,390 of the 18,197 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.5 while the reviewers who have a more unique product review history rated this product an average of 4.1. 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 reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.5
4.1


Read more about our Overlapping Review History test.

Warn Deleted Reviews

We discovered a total of 214 deleted reviews for this product, with an average rating of 4.4. 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 the Deleted Reviews test here.

4.4 average rating of deleted reviews

4.4


Show distribution of deleted reviews

Warn Brand Repeats

Brand Loyalists


377 of the 18,197 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, it does not appear to have a significant impact on the overall rating.

from Brand Loyalists

from Non-Loyalists


4.1
4.1


Read more about our Brand Repeats test.

Warn Reviewer Participation

  • 72%
  • 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 13112 reviewers (or 72%) 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


4.1
4.4


Read more about our Reviewer Participation test.

Pass Unverified Purchases

2,396 of the 18,197 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


3.6
4.2


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 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


4.2
4.3


Read more about our Reviewer Ease 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.


1 of the 18,197 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


5.0
4.1


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


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