Thermos Mondial Flask, 1.8 L - Black/Green/Blue
More product info
From Thermos
Refresh the report to view the most up-to-date data available:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Most Trusted Reviews
TRUST
- Verified Purchaser
- Easy Grader (avg. rating: 5.0)
Least Trusted Reviews
TRUST
- Unverified Purchaser
- Overrepresented Participation (posted 13 Reviews)
- Critical Reviewer (avg. rating: 3.2)
Analysis Details
33 of the 549 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 2.6 while the verified purchasers have rated this product an average of 3.9. 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.
One-Hit Wonders
35 of the 549 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.5 while the reviewers who have posted more than one review have rated this product an average of 3.9. 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.
Take-Back Reviewers
96 of the 549 reviewers have had at least one of their past reviews for another product deleted. The Take-Back Reviewers have rated this product an average of 4.2 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.7. 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.
-
- 30%
- Have an overrepresented word count
In the graph above, we can see the distribution of review word counts for this product and the expected distribution for this category. We see the following 1 group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 163 reviews (or 30%) are within an overrepresented word count group. These reviews have rated this product an average of 4.2, while all other reviews have rated this product an average of 3.6. 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.
(3.9/5)
(1.5/5)
(1.6/5)
10 of the 549 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 2.8 while reviews without substantial repetitive phrases rated this product an average of 3.8. 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.
-
- 70%
- From reviewers with an overrepresented participation
We see the following 2 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 387 reviewers (or 70%) are within an overrepresented participation group. These reviews have rated this product an average of 3.5, while all other reviews 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.
We discovered a total of 2 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.
-
- 7%
- Created over 11 days
We counted 549 reviews for this product over the span of 4,229 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 11 days exceeding this threshold:In total, we found that 38 reviews were created on just 11 days. Although any days with a larger number of reviews than expected is suspicious, the discrepancy in ratings from reviews created on these high volume days and reviews created on other days isn't significant enough to rule out the possibility of it being due to random chance.
2% also reviewed:
Fire TV Stick with Voice Remote | Streaming Media... by Amazon
2% also reviewed:
Duracell Plus AAA Batteries, 12 Count ( Pack of 1) by Duracell
1% also reviewed:
Amazon Echo Dot (2nd Gen) – Smart Speaker with... by Amazon
1% also reviewed:
SanDisk Ultra 200 GB microSDXC Memory Card + SD... by SanDisk
1% also reviewed:
SanDisk 64 GB Cruzer Blade USB 2.0 Flash Drive -... by SanDisk
1% also reviewed:
BRITA MAXTRA Water Filter Cartridges - Pack of 6 by BRITA
1% also reviewed:
Oral-B Pro 2 2000 3D White Electric Rechargeable... by Oral-B
1% also reviewed:
Fire Tablet, 7" Display, Wi-Fi, 8 GB... by Amazon
from the same brand
52 of the 549 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.
4.1 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
10 of the 549 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.
-
- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.