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Homdox Essential Oil Diffuser Ultrasonic Smart Music Aromatherapy Aroma Diffuser Air Humidifier
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From Homdox
This report was last updated 2/27/2018.
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Report Info:
Last Updated: Feb 27, 2018
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Home Décor Accents with authentic reviews:
Report Card
Warn Overall Grade
FAIL Unverified Purchases
FAIL Incentivized Reviews
FAIL Suspicious Reviewers
FAIL Phrase Repetition
FAIL Overlapping Review History
FAIL Reviewer Participation
WARN Deleted Reviews
PASS Rating Trend
PASS Word Count Comparison
PASS Reviewer Ease
PASS Brand Repeats
Most Trusted Reviews
I bought in December and it is already dead. It ... [Go to full review]
May 30, 2017
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (3 deleted Reviews; avg. rating: 4.7)
- Easy Grader (avg. rating: 4.5)
Least Trusted Reviews
Nice product [Go to full review]
Apr 21, 2017
0%
TRUST
TRUST
- Unverified Purchaser
- Overrepresented Participation (posted 7 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Unverified Purchases
76 of the 172 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.7 while the verified purchasers have rated this product an average of 3.7. 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.
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 Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
9 of the 172 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. Incentivized reviews have rated this product an average of 4.9 while reviews that were not incentivized 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Fail Suspicious Reviewers
One-Hit Wonders
14 of the 172 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 3.1 while the reviewers who have posted more than one review have 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.
Take-Back Reviewers
52 of the 172 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 4.7 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.8. 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.
Fail Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
14 of the 172 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.8 while reviews without substantial repetitive phrases 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
9% also reviewed:
Coocheer JJRC H26D 3MP Wide Angle HD Headless... by COOCHEER
7% also reviewed:
Arshiner Kids Girl's Double Strap Slim Solid... by Arshiner
6% also reviewed:
ACEVIVI Digital Anti Static Ceramic Hair... by ACEVIVI
5% also reviewed:
Arshiner Mother's Breast Feeding Clothing... by Arshiner
5% also reviewed:
ANCHEER AN-DL001 Braided Leather Dog Leash for... by Ancheer
Does not include products
from the same brand
from the same brand
27 of the 172 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 5.0 while the reviewers who have a more unique product review history 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.
Fail Reviewer Participation
-
- 44%
- 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 76 reviewers (or 44%) are within an overrepresented participation group. These reviews have rated this product an average of 3.6, while all other reviews 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.
Warn Deleted Reviews
We discovered a total of 2 deleted Reviews for this product, with an average rating of 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:
- 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.
Pass Rating Trend
-
- 5%
- Created over 2 days
We counted 172 reviews for this product over the span of 987 days, an average of 0.2 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.
However, we see the following 2 days exceeding this threshold:In total, we found that 8 reviews were created on just 2 days. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Word Count Comparison
-
- 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.
Read more about our Word Count Comparison 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 4.4.
4.3 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
34 of the 172 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.