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Dot&Dot Gymsack Drawstring Bag - Water Resistant and Lightweight Backpack with Drawcord Closure -...
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This report was last updated 2/24/2017.
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Last Updated: Feb 24, 2017
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Note: While Amazon.com claims 32 Ratings, we counted 80 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Incentivized Reviews
FAIL Suspicious Reviewers
FAIL Reviewer Ease
WARN Deleted Reviews
WARN Rating Trend
WARN Unverified Purchases
WARN Phrase Repetition
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Participation
PASS Brand Repeats
Most Trusted Reviews
My son attends a school where the students have to ... [Go to full review]
Oct 13, 2016
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 4.2)
Least Trusted Reviews
This is a GREAT bag, very good thick material. [Go to full review]
Sep 23, 2016
0%
TRUST
TRUST
- Unverified Purchaser
- Take-Back Reviewer (11 deleted Reviews; avg. rating: 4.6)
- Brand Repeater (2 of 57 reviews for this brand; avg rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.5)
Analysis Details
Fail Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
51 of the 80 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. Incentivized reviews have rated this product an average of 4.9 while reviews that were not incentivized 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.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Fail Suspicious Reviewers
Never-Verified Reviewers
18 of the 80 reviewers have never written a verified purchase review. While this is more Never-Verified Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Take-Back Reviewers
58 of the 80 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 4.9 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 4.5. 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.
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 4.3. 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.
4.6 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Deleted Reviews
We discovered a total of 1 deleted Review 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.
Warn Rating Trend
-
- 31%
- Created over 4 days
We counted 80 reviews for this product over the span of 96 days, an average of 0.8 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 5 or fewer reviews on any given day.
However, we see the following 4 days exceeding this threshold:In total, we found that 25 reviews were created on just 4 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Unverified Purchases
69 of the 80 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate 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 Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
29 of the 80 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Pass Word Count Comparison
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- 25%
- 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 20 reviews (or 25%) are within an overrepresented word count group. 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:
18% also reviewed:
Art Naturals Organic Argan Oil Hair Loss Shampoo... by Artnaturals
11% also reviewed:
100% Natural Arabica Coffee Scrub with Organic... by First Botany
11% also reviewed:
artnaturals Argan Hair Growth Shampoo - (16 Fl Oz... by Artnaturals
10% also reviewed:
Viva Naturals Organic Shea Butter (4 oz) - Raw... by Viva Naturals
10% also reviewed:
ArtNaturals Tea Tree Foot Soak Salt with Epsom... by ArtNaturals
10% also reviewed:
Bluetooth Headphones: Stalion Sound Wireless... by Stalion
9% also reviewed:
Ohuhu 50 Feet Garden Hose / Expandable Hose with... by Ohuhu
Does not include products
from the same brand
from the same brand
38 of the 80 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 Participation
-
- 0%
- From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.
Read more about our Reviewer Participation test.
Pass Brand Repeats
Brand Repeaters
18 of the 80 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.