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Garnier Hair Color Olia Oil Powered Permanent, 3.0 Darkest Brown, 2 Count
More product info
From Garnier
This report was last updated 7/27/2021.
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: While Amazon.com claims 22,079 Ratings, we counted 3,131 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 
Suspicious Reviewers
Suspicious ReviewersFAIL Overlapping Review History
Overlapping Review HistoryFAIL Reviewer Participation
Reviewer ParticipationWARN Deleted Reviews
Deleted ReviewsWARN Rating Trend
Rating TrendPASS Unverified Purchases
Unverified PurchasesPASS Word Count Comparison
Word Count ComparisonPASS Phrase Repetition
Phrase RepetitionPASS Reviewer Ease
Reviewer EasePASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized Reviews
Most Trusted Reviews
The boxes arrived smashed and one was completely open and ... [Go to full review]
Sep 4, 2020
100%
TRUST
TRUST
-
Verified Purchaser
-
Critical Reviewer (avg. rating: 4.1)
Least Trusted Reviews
I have light blonde and lose curly hair. Followed the ... [Go to full review]
May 3, 2020
0%
TRUST
TRUST
-
Unverified Purchaser -
Created on a high volume day
-
Take-Back Reviewer (1 deleted Review; avg. rating: 1.0) -
Overrepresented Participation (posted 9 Reviews) -
Critical Reviewer (avg. rating: 2.5)
Analysis Details
Fail Suspicious Reviewers
Suspicious Reviewers
One-Hit Wonders
108 of the 3,131 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 2.3 while the reviewers who have posted more than one review have rated this product an average of 3.5. 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.
Never-Verified Reviewers
69 of the 3,131 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 2.6 while the reviewers who have written at least one verified purchase review rated this product an average of 3.4. 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
1,367 of the 3,131 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 3.7 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.2. 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.
Single-Day Reviewers
43 of the 3,131 reviewers have written multiple reviews but posted all of them on a single day. The Single-Day reviewers have rated this product an average of 4.2 while all other reviewers rated this product an average of 3.4. 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 Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
2% also reviewed:
L'Oreal Paris Feria Multi-Faceted Shimmering... by L'Oreal Paris
2% also reviewed:
SoundHealth Extra Strength Heartburn &... by SoundHealth
1% also reviewed:
Pre de Provence Artisanal French Soap Bar... by Pre de Provence
1% also reviewed:
Barnana Organic Chewy Banana Bites, Dark... by Barnana
1% also reviewed:
Neutrogena Hydro Boost Hydrating Foundation Stick... by Neutrogena
1% also reviewed:
Revlon PhotoReady Candid Natural Finish... by REVLON
1% also reviewed:
Fisher Snack Oven Roasted Never Fried, Almonds,... by Fisher Nuts
Does not include products
from the same brand
from the same brand
201 of the 3,131 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.9 while the reviewers who have a more unique product review history rated this product an average of 3.4. 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 Participation
Reviewer Participation
-
- 46%
- 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 1430 reviewers (or 46%) are within an overrepresented participation group. These reviews have rated this product an average of 3.0, while all other reviews 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.
Warn Deleted Reviews
Deleted Reviews
We discovered a total of 128 deleted Reviews for this product, with an average rating of 3.9. 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.
3.9 average rating of deleted reviews
Warn Rating Trend
Rating Trend
-
- 10%
- Created over 38 days
We counted 3,131 reviews for this product over the span of 3,057 days, an average of 1.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 6 or fewer reviews on any given day.
However, we see the following 38 days exceeding this threshold:In total, we found that 315 reviews were created on just 38 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
Pass Unverified Purchases
Unverified Purchases
538 of the 3,131 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
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
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:
37 reviews
(3.5/5)
(3.5/5)
1 of the 3,131 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 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, while the average ease score for reviewers in this category is 4.3.
4.0 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
272 of the 3,131 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.
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.
1 of the 3,131 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.