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Holmes HBF2001DP-BM 20-Inch Box Fan,Black
More product info From Holmes

Amazon Reviews for Holmes HBF2001DP-BM 20-Inch Box Fan,Black
Rating:
3,317 Reviews
23% of potentially unnatural reviews removed (Why?)
Adjusted:
View/Edit Adjustment
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Report Info:
Last Updated: Jun 19, 2019
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Note: While Amazon.com claims 3,317 reviews, we counted 3,333 available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

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

Most Trusted Reviews

1/5
Returned instantly, as the center part of plastic blade housing ... [Go to full review]
May 10, 2019      
100% TRUST
  • Verified Purchaser
  • Critical Reviewer (avg. rating: 3.9)


Least Trusted Reviews

5/5
Powerful fan and love the black color [Go to full review]
Jun 27, 2018      
0% TRUST
  • Unverified Purchaser
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jun 27, 2018)
  • Take-Back Reviewer (1 deleted review; avg. rating: 2.0)
  • Overrepresented Participation (posted 2 reviews)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Suspicious Reviewers

One-Hit Wonders


153 of the 3,333 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.3 while the reviewers who have posted more than one review have rated this product an average of 3.6. 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 one-hit wonders

from reviewers with more than one review


2.3
3.6


Take-Back Reviewers


1,131 of the 3,333 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 3.8 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.4. 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


3.8
3.4


Single-Day Reviewers


98 of the 3,333 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 3.8 while all other reviewers rated this product an average of 3.5. 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.

from single-day reviewers

from non-single-day reviewers


3.8
3.5


Read more about our Suspicious Reviewers test.

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

2% also reviewed:
The Silmarillion by J.R.R. Tolkien

2% also reviewed:
Fire by Amazon

Does not include products
from the same brand


277 of the 3,333 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.9 while the reviewers who have a more unique product review history rated this product an average of 3.5. 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


3.9
3.5


Read more about our Overlapping Review History test.

Fail Reviewer Participation

  • 22%
  • From reviewers with an overrepresented participation

We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 747 reviewers (or 22%) are within an overrepresented participation group. These reviews have rated this product an average of 2.8, while all other reviews 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.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


2.8
3.7


Read more about our Reviewer Participation test.

Warn Deleted Reviews

We discovered a total of 124 deleted reviews for this product, with an average rating of 4.6. 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.

4.6 average rating of deleted reviews

4.6


Show distribution of deleted reviews

Warn Rating Trend

  • 17%
  • Created over 66 days

We counted 3,333 reviews for this product over the span of 3,307 days, an average of 1.0 review per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.

However, we see the following 66 days exceeding this threshold:In total, we found that 559 reviews were created on just 66 days. This is an excessively high number of reviews submitted on these high volume days.

from reviews created on high volume days

from reviews created on normal volume days


3.4
3.6


Read more about our Rating Trend test.

Pass Unverified Purchases

204 of the 3,333 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


3.2
3.5


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 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.

Pass Phrase Repetition
  • 0%
  • Used substantial repetitive phrases
0 of the 3,333 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 3.9, while the average ease score for reviewers in this category is 4.2.

3.9 Product's Average Ease Score

4.2 Category's Average Ease Score


3.9
4.2


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


118 of the 3,333 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


3.9
3.5


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.

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


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