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Grouptronics GTDVD-181 Compact Multi Region DVD Player & Karaoke Player with USB, HDMI...
More product info
From Grouptronics
This report was last updated 12/30/2022.
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".
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Report Card
Pass Overall Grade
FAIL 
Deleted Reviews
Deleted ReviewsFAIL Unverified Purchases
Unverified PurchasesFAIL Suspicious Reviewers
Suspicious ReviewersWARN Rating Trend
Rating TrendWARN Phrase Repetition
Phrase RepetitionPASS Word Count Comparison
Word Count ComparisonPASS 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
I bought this model mainly for the ability to play ... [Go to full review]
Jan 7, 2021
100%
TRUST
TRUST
-
Verified Purchaser
-
Easy Grader (avg. rating: 4.5)
Critical Reviewer (avg. rating: 4.2)
Take-Back Reviewer (1 deleted Review; avg. rating: 2.0)
Least Trusted Reviews
I really liked everything about it [Go to full review]
Jan 7, 2019
0%
TRUST
TRUST
-
Verified Purchaser
-
Overrepresented word count (7 words) -
Contains repetitive phrases (show)
-
Overlapping Review History: reviewed 1 of 9 top products -
Easy Grader (avg. rating: 5.0)
Unverified Purchaser
Never-Verified Reviewer
Analysis Details
Fail Deleted Reviews
Deleted Reviews
We discovered a total of 4 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
8 of the 1,834 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 1.0 while the verified purchasers have rated this product an average of 4.3. 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 Suspicious Reviewers
Suspicious Reviewers
Never-Verified Reviewers
Less than approximately 10% of reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 1.0 while the reviewers who have written at least one verified purchase review rated this product an average of 4.3. 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 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.
Warn 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
~16% of reviews
(4.4/5)
(4.4/5)
~4% of reviews
(5.0/5)
(5.0/5)
~4% of reviews
(4.0/5)
(4.0/5)
~4% of reviews
(5.0/5)
(5.0/5)
~7% of reviews
(4.3/5)
(4.3/5)
~4% of reviews
(5.0/5)
(5.0/5)
~4% of reviews
(5.0/5)
(5.0/5)
~7% of reviews
(3.7/5)
(3.7/5)
~7% of reviews
(5.0/5)
(5.0/5)
Common Phrases in Titles:
~4% of reviews
(3.0/5)
(3.0/5)
Approximately 20% of reviews use substantial repetitive phrases between them. While this is more than we'd expect to see, the discrepancy in ratings between the these reviews and reviews without substantial repetitive phrases isn't significant enough to rule out the possibility of it being due to random chance.
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 Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
<10% also reviewed:
Hamburger Hill [Blu-ray] by Lions Gate Home Entertainment
<10% also reviewed:
Hoya 62mm UV(C) Digital HMC Screw-in Filter by Hoya
<10% also reviewed:
Battleship [Blu-ray] [Region Free] by Liam Neeson
<10% also reviewed:
Frozen [DVD] by Chris Buck
<10% also reviewed:
Back Scratcher & Massager by Betterware
<10% also reviewed:
humax HDR-1100S 500 GB Freesat with Freetime HD... by HUMAX
<10% also reviewed:
BT Video Baby Monitor 6000 by BT
<10% also reviewed:
The Terminator [Blu-ray] [1984] [Region Free] by 20th Century Fox Home Entertainment
<10% also reviewed:
Super Bright Cree Led Torch Large 4 Batteries... by MAYTHANK
Approximately 20% 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.
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 4.2, while the average ease score for reviewers in this category is 4.3.
4.2 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.