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PowerLead Professional Bluetooth Wireless Speaker,Powerful Sound with build in Microphone for...
More product info From PowerLead

Amazon Reviews for  PowerLead Professional Bluetooth Wireless Speaker,Powerful Sound with build in Microphone for Iphone, Ipad Mini, Ipad 4/3/2, Itouch, Blackberry, Nexus, Samsung
Rating:
57 Ratings
46 Reviews
("Ratings" vs. "Reviews")
67% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card
Report Info:
Last Updated: Apr 4, 2017
Refresh Report
Note: While Amazon.com claims 57 Ratings, we counted 46 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".

Report Card

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

Most Trusted Reviews

I bought this because it had a radio built in. ... [Go to full review]
Jan 3, 2017      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (4 deleted Reviews; avg. rating: 4.5)
  • Critical Reviewer (avg. rating: 3.9)


Least Trusted Reviews

The USB and Micro SD card reader will list and ... [Go to full review]
Jan 4, 2016      
0% TRUST
  • Verified Purchaser
  • Created on a high volume day
  • Overrepresented word count (65 words)
  • One-Hit Wonder
  • Overrepresented Participation (posted 1 Review)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Deleted Reviews

We discovered a total of 7 deleted Reviews for this product, with an average rating of 4.4. 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:
  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.

4.4 average rating of deleted reviews

4.4


Show distribution of deleted reviews

Fail Rating Trend

  • 41%
  • Created over 5 days

We counted 46 reviews for this product over the span of 468 days, an average of 0.1 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 5 days exceeding this threshold:In total, we found that 19 reviews were created on just 5 days. The reviews on these high volume days have rated this product an average of 4.8 while reviews from other days 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.

from reviews created on high volume days

from reviews created on normal volume days


4.8
4.2


Read more about our Rating Trend test.

Fail Suspicious Reviewers

One-Hit Wonders


28 of the 46 reviewers have only reviewed this product. This is an excessively large percentage of One-Hit Wonders which may indicate unnatural reviews.

from one-hit wonders

from reviewers with more than one review


4.7
4.1


Take-Back Reviewers


8 of the 46 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.1
4.5


Read more about our Suspicious Reviewers test.

Fail 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 4.6, while the average ease score for reviewers in this category is 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.

4.6 Product's Average Ease Score

4.2 Category's Average Ease Score


4.6
4.2


Read more about our Reviewer Ease test.


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


3 of the 46 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. While we could not find a statistically significant difference between the average rating of incentivized reviews and non-incentivized reviews, the presences of at least one incentivized review indicates that there may be more, since not all reviewers will disclose that they had received an incentive to post a review.

from incentivized reviews

from non-incentivized reviews


4.7
4.4


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

Warn Phrase Repetition


6 of the 46 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


5.0
4.4


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 80%
  • 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 37 reviewers (or 80%) 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


4.5
4.2


Read more about our Reviewer Participation test.

Pass Unverified Purchases

2 of the 46 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


5.0
4.4


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

Does not include products
from the same brand


3 of the 46 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


5.0
4.4


Read more about our Overlapping Review History test.

Pass Brand Repeats

Brand Repeaters


2 of the 46 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


5.0
4.4


Read more about our Brand Repeats test.