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Amazon Reviews for  Amazon Alexa
Rating:
23,907 Ratings
22,784 Reviews
("Ratings" vs. "Reviews")
57% of potentially unnatural reviews removed (why?)
Adjusted:
10,324 Reviews




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Last Updated: Jul 20, 2020
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Note: While Amazon.com claims 23,907 Ratings, we counted 22,784 Reviews available on their site.
Note: While we've examined all 22,784 reviews, our reviewer analysis is based on a sample of 21,956 reviewers.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Top products in TV with authentic reviews:


Relevant Radio



Adjusted
Rating:
137 Reviews

Bott Radio Network



Adjusted
Rating:
9 Reviews

Report Card

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

Most Trusted Reviews

1/5
I would love to get this to work but it ... [Go to full review]
Dec 25, 2015      
73% TRUST
  • Verified Purchaser
  • Overrepresented word count (15 words)
  • Overrepresented Participation (posted 8 Reviews)
  • Critical Reviewer (avg. rating: 2.6)


Least Trusted Reviews

5/5
I have a new friend [Go to full review]
Nov 21, 2016      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Nov 21, 2016)
  • Overrepresented Participation (posted 3 Reviews)
  • Critical Reviewer (avg. rating: 3.7)


Analysis Details

Fail Rating Trend

  • 44%
  • Created over 187 days

We counted 22,784 reviews for this product over the span of 1,937 days, an average of 11.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 25 or fewer reviews on any given day.

However, we see the following 187 days exceeding this threshold:In total, we found that 9,927 reviews were created on just 187 days. The reviews on these high volume days have rated this product an average of 4.2 while reviews from other days 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 created on high volume days

from reviews created on normal volume days


4.2
4.0


Read more about our Rating Trend test.

Fail Unverified Purchases

786 of the 22,784 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 2.8 while the verified purchasers have 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 unverified purchasers

from verified purchases


2.8
4.1


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.

Fail Suspicious Reviewers

Never-Verified Reviewers


207 of a random sample of 21,956 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 2.9 while the reviewers who have written at least one verified purchase review 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 never-verified reviewers

from reviewers with at least one verified purchase review


2.9
4.1


Take-Back Reviewers


8,081 of a random sample of 21,956 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 4.2 while the reviewers who don't have any deleted reviews in their history have 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 take-back reviewers

from reviewers without previously deleted reviews


4.2
4.1


Single-Day Reviewers


360 of a random sample of 21,956 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 4.2 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


4.2
4.1


Read more about our Suspicious Reviewers test.

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

4% also reviewed:
Fire by Amazon

Does not include products
from the same brand


5,845 of a random sample of 21,956 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.2 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


4.2
4.1


Read more about our Overlapping Review History test.

Warn Deleted Reviews

We discovered a total of 14 deleted Reviews for this product, with an average rating of 3.1. 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.

3.1 average rating of deleted reviews

3.1


Show distribution of deleted reviews

Warn Reviewer Participation

  • 55%
  • 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 12149 reviewers (or 55%) 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


4.0
4.2


Read more about our Reviewer Participation test.

Pass Word Count Comparison

  • 29%
  • 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 6,608 reviews (or 29%) 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.1
4.1


Read more about our Word Count Comparison test.

Pass Phrase Repetition
  • 0%
  • Used substantial repetitive phrases
0 of the 22,784 total reviews for this product use substantial repetitive phrases between them. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Phrase Repetition 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 4.3, while the average ease score for reviewers in this category is 4.3.

4.3 Product's Average Ease Score

4.3 Category's Average Ease Score


4.3
4.3


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


789 of a random sample of 21,956 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.

from Brand Repeaters

from Non-Repeaters


4.2
4.1


Read more about our Brand Repeats 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.


2 of the 22,784 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


3.0
4.1


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