• 342
• Reviews have been deleted

We discovered a total of 342 deleted Reviews for this product, with an average rating of 4.2. 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.

Show distribution of deleted reviews

Take-Back Reviewers

• 
• 85%
• have previously deleted reviews

29 of the 34 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back Reviewers which may indicate unnatural reviews.

Read more about our Suspicious Reviewers test.

Brand Repeaters

• 
• 35%
• Reviewed other products from this brand

12 of the 34 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.

Read more about our Brand Repeats test.

• 
• 62%
• Substantial overlapping review history

21 of the 34 reviewers have substantial overlapping product review history. While this is more than we'd expect to see, the discrepancy in ratings between these reviewers and reviewers who have a more unique product review history isn't significant enough to rule out the possibility of it being due to random chance.

Read more about our Overlapping Review History test.

• 
• 0%
• Created over 19 days

We counted 34 reviews for this product over the span of 854 days, an average of 0.0 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 19 days exceeding this threshold:

• 14 Reviews on Dec 6, 2019 (Avg. rating: 4.3)
• 13 Reviews on Dec 23, 2019 (Avg. rating: 3.9)
• 11 Reviews on Dec 5, 2019 (Avg. rating: 4.4)
• 11 Reviews on Dec 13, 2019 (Avg. rating: 4.4)
• 10 Reviews on Dec 9, 2019 (Avg. rating: 4.1)
• 10 Reviews on Dec 11, 2019 (Avg. rating: 4.1)
• 9 Reviews on Dec 22, 2019 (Avg. rating: 4.4)
• 9 Reviews on Dec 4, 2019 (Avg. rating: 4.3)
• 9 Reviews on Dec 16, 2019 (Avg. rating: 4.2)
• 8 Reviews on Dec 8, 2019 (Avg. rating: 4.4)
• 8 Reviews on Dec 15, 2019 (Avg. rating: 4.3)
• 8 Reviews on Dec 19, 2019 (Avg. rating: 3.9)
• 8 Reviews on Dec 7, 2019 (Avg. rating: 3.8)
• 7 Reviews on Nov 30, 2019 (Avg. rating: 4.9)
• 7 Reviews on Dec 10, 2019 (Avg. rating: 4.6)
• 7 Reviews on Dec 12, 2019 (Avg. rating: 4.6)
• 7 Reviews on Dec 25, 2019 (Avg. rating: 4.6)
• 7 Reviews on Dec 3, 2019 (Avg. rating: 4.4)
• 6 Reviews on Dec 18, 2019 (Avg. rating: 4.2)
Show All

In total, we found that 0 reviews were created on just 19 days. 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 Rating Trend test.

• 
• 6%
• Unverified Purchases

2 of the 34 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.

• 
• 0%
• Have an overrepresented word count

We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.

• 
• 15%
• Used substantial repetitive phrases

5 of the 34 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.

• 
• 0%
• From reviewers with an overrepresented participation

We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.

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 4.4.

On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.

• 
• 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.