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More product info From 小松未可子 Report Feedback


Rating:
970 Reviews
96% of potentially unnatural reviews removed (Why?)
Adjusted:
Jump to Report Card


Report Card

Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Reviewer Ease
WARN Deleted Reviews
WARN Rating Trend
WARN Unverified Purchases
PASS Word Count Comparison
PASS Overlapping Review History
PASS Brand Repeats
N/A Phrase Repetition
N/A Reviewer Participation
N/A Incentivized Reviews

Most Trusted Reviews

あの伝説的ヒット作を生... [Go to full review]
Apr 3, 2019      
100% TRUST
  • Verified Purchaser
  • Overrepresented word count (125 words)
  • Critical Reviewer (avg. rating: 2.5)


Least Trusted Reviews

4話から一気に見たので... [Go to full review]
Mar 28, 2019      
0% TRUST
  • Unverified Purchaser
  • Created on a high volume day
  • Overrepresented word count (190 words)
  • One-Hit Wonder
  • Never-Verified Reviewer
  • Overrepresented Participation (posted 1 review)
  • Easy Grader (avg. rating: 5.0)


Analysis Details

Fail Suspicious Reviewers

One-Hit Wonders


Approximately 85% of reviewers have only reviewed this product. This is an excessively large percentage of One-Hit Wonders which may indicate unnatural reviews.

from one-hit wonders

from reviewers with more than one review


4.7
4.4


Never-Verified Reviewers


Approximately 65% of reviewers have never written a verified purchase review. This is an excessively large percentage of Never-Verified Reviewers which may indicate unnatural reviews.

from never-verified reviewers

from reviewers with at least one verified purchase review


4.6
4.7


Read more about our Suspicious Reviewers test.

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 4.5, while the average ease score for reviewers in this category is 4.2. 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.

4.5 Product's Average Ease Score

4.2 Category's Average Ease Score


4.5
4.2


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 1. 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.

1.0 average rating of deleted reviews

1.0


Show distribution of deleted reviews

Warn Rating Trend
It appears that several reviews were created during just a short period of time.
Read more about our Rating Trend test.

Warn Unverified Purchases

946 of the 970 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate unnatural reviews.

from unverified purchasers

from verified purchases


4.6
5.0


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
Word counts are approximated for Hanzi and Kanji


  • ~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 approximately 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.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.8
4.6


Read more about our Word Count Comparison test.

Pass Overlapping Review History
  • <10%
  • Substantial overlapping review history
Less than approximately 10% 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.
Read more about our Overlapping Review History test.

Pass Brand Repeats

Brand Repeaters

We didn't detect a substantial amount of Brand Repeaters.

N/A Phrase Repetition
We have not yet completed optimization for this test for Hanzi or Kanji.

N/A Reviewer Participation
We haven't collected sufficient data to run this test yet. See more

N/A Incentivized Reviews
We have not yet completed optimization for this test for Hanzi or Kanji.


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