Close
Amazon.com > Home & Kitchen > Kitchen & Dining > Kitchen Utensils & Gadgets > Bar & Wine Tools > Wine Stoppers & Pourers
Wine Vacuum Stopper, Wine Saving Vacuum Pump and Wine Bottle Stopper with Date Marker, to Remove...
More product info
From Ainovate
This report was last updated 5/25/2019.
Refresh the report to view the most up-to-date data available:
Refresh the report to view the most up-to-date data available:
View/Edit Adjustment
Jump to Report Card
Report Card
Pass Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
WARN Reviewer Participation
PASS Rating Trend
PASS Unverified Purchases
PASS Word Count Comparison
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
I'm giving the product 3*. First of all, the instructions ... [Go to full review]
Apr 14, 2018
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (10 deleted Reviews; avg. rating: 3.7)
- Overlapping Review History: reviewed 1 of 9 top products
- Critical Reviewer (avg. rating: 3.8)
Least Trusted Reviews
Great wine stopper! Easy to use. Vacuums out the air ... [Go to full review]
Jan 8, 2018
10%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (35 words)
- Contains repetitive phrases (show)
- Take-Back Reviewer (14 deleted Reviews; avg. rating: 5.0)
- Overlapping Review History: reviewed 3 of 9 top products
- Overrepresented Participation (posted 14 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Deleted Reviews
We discovered a total of 22 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.
Fail Suspicious Reviewers
Take-Back Reviewers
9 of the 37 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 Reviewer Participation
-
- 41%
- 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 15 reviewers (or 41%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
Pass Rating Trend
-
- 0%
- Created on high-volume days
We counted 37 reviews for this product over the span of 503 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. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Unverified Purchases
1 of the 37 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
-
- 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.
1 of the 37 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:
5% also reviewed:
Hardware House H10-4029 Dover Chandelier,... by Hardware House
5% also reviewed:
Fine Line and Wrinkle Repair Correction Collagen... by Lilian Fache
5% also reviewed:
Fortino Landi Men's Long Sleeve Dress Shirt With... by FORTINO LANDI
5% also reviewed:
Vacu Vin Wine Saver Pump with 2 x Vacuum Bottle... by Vacu Vin
5% also reviewed:
Teeth Whitening Charcoal 4 Oz Old Package Version by MAJESTIC PURE
5% also reviewed:
Fire TV Stick bundle with Echo Dot (2nd Gen) -... by Amazon
5% also reviewed:
Gya Labs Melissa Essential Oil - for Healthier... by Gya Labs
Does not include products
from the same brand
from the same brand
10 of the 37 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
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 Repeaters
We didn't detect a substantial amount of Brand Repeaters.
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. 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.