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Oral-B Pro-Health Clinical Pro-Flex Toothbrush with Flexing Sides, 40M Medium, Original Version, 2...
More product info
From Oral-B
This report was last updated 1/16/2023.
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".
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Report Card
Pass Overall Grade
FAIL 
Deleted Reviews
Deleted ReviewsFAIL Unverified Purchases
Unverified PurchasesFAIL Suspicious Reviewers
Suspicious ReviewersWARN Brand Repeats
Brand RepeatsPASS Rating Trend
Rating TrendPASS Word Count Comparison
Word Count ComparisonPASS Phrase Repetition
Phrase RepetitionPASS Overlapping Review History
Overlapping Review HistoryPASS Reviewer Ease
Reviewer EasePASS Incentivized Reviews
Incentivized ReviewsN/A Reviewer Participation
Reviewer Participation
Most Trusted Reviews
It's a good value [Go to full review]
Mar 9, 2021
100%
TRUST
TRUST
-
Verified Purchaser
-
One-Hit Wonder -
Easy Grader (avg. rating: 5.0)
Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0)
Least Trusted Reviews
good product [Go to full review]
Apr 24, 2018
0%
TRUST
TRUST
-
Verified Purchaser
-
Overrepresented word count (2 words)
-
One-Hit Wonder
-
Critical Reviewer (avg. rating: 4.0)
Overlapping Review History: reviewed 1 of 9 top products
Unverified Purchaser
Never-Verified Reviewer
Analysis Details
Fail Deleted Reviews
Deleted Reviews
We discovered a total of 103 deleted Reviews for this product, with an average rating of 4.8. 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.
4.8 average rating of deleted reviews
Fail Unverified Purchases
Unverified Purchases
83 of the 2,312 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 4.5. 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.
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
Take-Back Reviewers
Approximately 60% of 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 Brand Repeats
Brand Repeats
Brand Repeaters
Approximately 25% of reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.
Pass Rating Trend
Rating Trend
-
- <10%
- Created on high-volume days
We didn't notice any signals that would indicate reviews were created unevenly over 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:
~5% of reviews
(4.5/5)
(4.5/5)
~5% of reviews
(4.5/5)
(4.5/5)
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.
Pass Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
<10% also reviewed:
Amazon Basics USB 2.0 Extension Cable - A-Male to... by Amazon Basics
<10% also reviewed:
Rayovac (PS3) Universal Smart Battery Charger by Rayovac
<10% also reviewed:
KitchenAid Bowl Covers by KitchenAid
<10% also reviewed:
Rayovac RoughNeck 85 Lumen 2D LED Flashlight with... by Spectrum
<10% also reviewed:
Rubbermaid - Mini Food Storage Containers, (0.5... by Rubbermaid
<10% also reviewed:
Spasilk Washcloth Wipes Set for Newborn Boys and... by Spasilk
<10% also reviewed:
SheaMoisture Elixir After Shave, 4 Fluid Ounce by SheaMoisture
<10% also reviewed:
Tide Liquid Laundry Detergent, Original, 64 loads by Tide
Does not include products
from the same brand
from the same brand
Approximately 15% 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 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.