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Yakamok Full Blackout Curtains 84 Inches Long,Blackout Curtain Panels for Bedroom, 2 Thick Layers...
More product info
From Yakamok
This report was last updated 3/3/2023.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
*This is only a Preliminary Report
Our full report will examine much more data, but requires considerably more processing power. Enter your email to receive a notification when the full report is complete.
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Top products in Panels with authentic reviews:
Report Card
Pass Overall Grade
FAIL 
Deleted Reviews
Deleted ReviewsFAIL Unverified Purchases
Unverified PurchasesWARN Rating Trend
Rating TrendPASS Word Count Comparison
Word Count ComparisonPASS Phrase Repetition
Phrase RepetitionPASS Suspicious Reviewers
Suspicious ReviewersPASS Overlapping Review History
Overlapping Review HistoryPASS Reviewer Ease
Reviewer EasePASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized ReviewsN/A Reviewer Participation
Reviewer Participation
Most Trusted Reviews
they make my room so dark! i work overnight so ... [Go to full review]
Mar 1, 2023
100%
TRUST
TRUST
-
Verified Purchaser
-
Easy Grader (avg. rating: 5.0)
Least Trusted Reviews
Very good quality. Definitely recommend. I’m not sure if I ... [Go to full review]
Feb 16, 2023
0%
TRUST
TRUST
-
Unverified Purchaser
-
Easy Grader (avg. rating: 4.8)
Contains repetitive phrases 
Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
Overrepresented Participation (posted 8 Reviews)
Critical Reviewer (avg. rating: 4.1)
Overlapping Review History: reviewed 1 of 9 top products
Analysis Details
Fail Deleted Reviews
Deleted Reviews
We discovered a total of 6 deleted Reviews for this product, with an average rating of 5. 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.
5.0 average rating of deleted reviews
Fail Unverified Purchases
Unverified Purchases
28 of the 4,815 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 4.0 while the verified purchasers have rated this product an average of 4.7. 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.
Warn Rating Trend
Rating Trend
It appears that several reviews were created during just a short period of time.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Word Count Comparison
Word Count Comparison
-
- <10%
- 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
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
~29% of reviews
(4.4/5)
(4.4/5)
~17% of reviews
(5.0/5)
(5.0/5)
~42% of reviews
(4.8/5)
(4.8/5)
~21% of reviews
(5.0/5)
(5.0/5)
~13% of reviews
(4.3/5)
(4.3/5)
~8% of reviews
(5.0/5)
(5.0/5)
~8% of reviews
(5.0/5)
(5.0/5)
~29% of reviews
(4.7/5)
(4.7/5)
~17% of reviews
(4.8/5)
(4.8/5)
~8% of reviews
(5.0/5)
(5.0/5)
-
- <10%
- Used substantial repetitive phrases
Less than approximately 10% of reviews 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.
Read more about our Phrase Repetition test.
Pass Suspicious Reviewers
Suspicious Reviewers
One-Hit Wonders
We didn't detect a substantial amount of One Hit Wonders.
Never-Verified Reviewers
We didn't detect a substantial amount of Never-Verified Reviewers.
Take-Back Reviewers
Approximately 20% of reviewers have had at least one of their past reviews for another product deleted. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Single-Day Reviewers
We didn't detect a substantial amount of Single-Day Reviewers.
Pass Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
~15% also reviewed:
GermGuardian Air Purifier with HEPA 13 Filter,... by GermGuardian
~15% also reviewed:
Amazon Prime Video by Amazon.com
~15% also reviewed:
Amazon Basics Fade-Resistant Cotton Washcloth -... by Amazon Basics
<10% also reviewed:
Predictions Comfort Plus Women's Karmen Pump by Predictions
<10% also reviewed:
Amazon Basics 5/8-Inch Room Darkening Curtain Rod by Amazon Basics
<10% also reviewed:
Danjor Linens Bed Sheets Set - 1800 Series... by Danjor Linens
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- <10%
- Substantial overlapping review history
Less than approximately 10% of 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.
Read more about our Overlapping Review History test.
Read more about our Overlapping Review History test.
Pass Reviewer Ease
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 4.5, while the average ease score for reviewers in this category is 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.5 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeats
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
Pass Incentivized Reviews
Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
-
- <10%
- 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.