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Joico Color Endure Violet Shampoo and Conditioner Duo 10 Ounce From Joico Report Feedback

Pass Reviews appear natural

Original:

135 Reviews

Adjusted:

122 Reviews

33%
33%

View/Edit Adjustment
How is this calculated
Report Last Updated: Oct 6, 2018
Show Report History
Update Available
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Report Card

Click a test to jump to details

FAIL Suspicious Reviewers
WARN Deleted Reviews
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
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Most Trusted Reviews

I love the shampoo and the conditioner is just ok. ... [Go to full review]
Jan 13, 2015      
100% TRUST
  • Verified Purchaser
  • Overrepresented word count (24 words)
  • Brand Repeater (2 of 35 reviews for this brand; avg rating: 5.0)
  • Easy Grader (avg. rating: 4.6)


Least Trusted Reviews

We couldn't find any low-quality reviews

Analysis Details


Fail Suspicious Reviewers

Take-Back Reviewers


25 of the 135 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.2
4.0


Read more about our Suspicious Reviewers test.

Warn Deleted Reviews

We discovered a total of 4 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:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about the Deleted Reviews test here.

5.0 average rating of deleted reviews

5.0


Show distribution of deleted reviews

Warn Reviewer Participation

  • 76%
  • From reviewers with an overrepresented participation

We see the following 3 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 103 reviewers (or 76%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.0
4.2


Read more about our Reviewer Participation test.

Pass Rating Trend

  • 0%
  • Created on high-volume days
We counted 135 reviews for this product over the span of 2,361 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.

Pass Unverified Purchases

8 of the 135 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.

from unverified purchasers

from verified purchases


4.0
4.0


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

  • 24%
  • 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 32 reviews (or 24%) 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


3.8
4.1


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.

Common Phrases in Reviews:
5 reviews
(4.2/5)
2 reviews
(4.5/5)
2 reviews
(5.0/5)
2 reviews
(4.5/5)
2 reviews
(2.0/5)
2 reviews
(4.0/5)
2 reviews
(4.5/5)
Show MoreShow Less
Common Phrases in Titles:
2 reviews
(5.0/5)
3 reviews
(3.7/5)
2 reviews
(5.0/5)


11 of the 135 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.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


3.8
4.0


Read more about our Phrase Repetition test.

Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:

2% also reviewed:
NYX Single Eye Shadow by NYX

2% also reviewed:
The Tie That Binds by Camryn Manheim

2% also reviewed:
TC SOLID CHMBRY by

Does not include products
from the same brand


14 of the 135 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.1
4.0


Read more about our Overlapping Review History test.

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 4.1, while the average ease score for reviewers in this category is 4.3.

4.1 Product's Average Ease Score

4.3 Category's Average Ease Score


4.1
4.3


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


6 of the 135 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.

from Brand Repeaters

from Non-Repeaters


4.8
4.0


Read more about our Brand Repeats test.

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, or check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.


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