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BS1 Ultra-Portable Bluetooth Speaker, Bluetooth 4.0 and Aux Line Connection, Built-in Mic and Auto...
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From Arrela
This report was last updated 6/22/2018.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in MP3 & MP4 Player Accessories with authentic reviews:
Report Card
Pass Overall Grade
FAIL Deleted Reviews
FAIL Incentivized Reviews
FAIL Suspicious Reviewers
WARN Rating Trend
WARN Reviewer Ease
PASS Unverified Purchases
PASS Word Count Comparison
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Participation
PASS Brand Repeats
Most Trusted Reviews
A little loose in the outlet [Go to full review]
Oct 13, 2017
100%
TRUST
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 4.5)
Least Trusted Reviews
Length:: 2:10 Mins This is a good speaker. Sound is ... [Go to full review]
Mar 21, 2016
20%
TRUST
TRUST
- Unverified Purchaser
- Created on a high volume day
- Admitted to receiving an incentive
- Take-Back Reviewer (257 deleted Reviews; avg. rating: 4.7)
- Brand Repeater (3 of 1430 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 3 of 9 top products
- Easy Grader (avg. rating: 4.7)
Analysis Details
Fail Deleted Reviews
We discovered a total of 49 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:
- 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.
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.
16 of the 251 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 4.8 while reviews that were not incentivized 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.
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
Take-Back Reviewers
43 of the 251 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.
Warn Rating Trend
-
- 10%
- Created over 5 days
We counted 251 reviews for this product over the span of 1,063 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 5 days exceeding this threshold:In total, we found that 24 reviews were created on just 5 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
Warn 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 4.2. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.3 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Unverified Purchases
29 of the 251 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.
Pass Word Count Comparison
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- 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 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:
Show MoreShow Less
12 reviews
(4.0/5)
(4.0/5)
2 reviews
(5.0/5)
(5.0/5)
3 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
2 reviews
(5.0/5)
(5.0/5)
3 reviews
(4.0/5)
(4.0/5)
11 of the 251 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.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
2% also reviewed:
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2% also reviewed:
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2% also reviewed:
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2% also reviewed:
SanDisk Ultra MicroSDXC UHS-I Card with Adapter by SanDisk
2% also reviewed:
Sandisk Ultra - Flash Memory Card - 16 GB -... by SanDisk
2% also reviewed:
GBTIGER Bluetooth Wireless LED Speakers with... by GBTIGER
2% also reviewed:
Portable Outdoor Bluetooth Speakers,Wireless... by Transwin
Does not include products
from the same brand
from the same brand
26 of the 251 reviewers have substantial overlapping product review history. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Pass Reviewer Participation
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- 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.
Read more about our Reviewer Participation test.
Pass Brand Repeats
Brand Repeaters
7 of the 251 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.