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【Spigen】 スマホケース iPhone8 ケース / iPhone7 ケース 対応 TPU...
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From Spigen
This report was last updated 9/7/2019.
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 Card
Fail Overall Grade
FAIL Reviewer Ease
FAIL Word Count Comparison
WARN Rating Trend
WARN Suspicious Reviewers
WARN Reviewer Participation
PASS Unverified Purchases
PASS Overlapping Review History
PASS Brand Repeats
PASS Deleted Reviews
N/A Phrase Repetition
N/A Incentivized Reviews
Most Trusted Reviews
iPhone5から7へと久しぶり�... [Go to full review]
Nov 27, 2017
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.8)
Least Trusted Reviews
フィット感... [Go to full review]
Sep 22, 2016
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (31 words)
- Overrepresented Participation (posted 4 Reviews)
- Critical Reviewer (avg. rating: 3.3)
Analysis Details
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 4.4, 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.
4.4 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
Word counts are approximated for Hanzi and Kanji
-
- 79%
- 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 3 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 1,293 reviews (or 79%) are within an overrepresented word count group. These reviews have rated this product an average of 4.5, while all other reviews have rated this product an average of 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.
Warn Rating Trend
-
- 9%
- Created over 15 days
We counted 1,635 reviews for this product over the span of 1,088 days, an average of 1.5 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 7 or fewer reviews on any given day.
However, we see the following 15 days exceeding this threshold:In total, we found that 141 reviews were created on just 15 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.
Warn Suspicious Reviewers
One-Hit Wonders
260 of the 1,635 reviewers have only reviewed this product. While this is more One-Hit Wonders than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Warn Reviewer Participation
-
- 63%
- From reviewers with an overrepresented participation
We see the following 1 participation group with a statistically significant greater concentration than what we'd expect to see:In total, we found that 1027 reviewers (or 63%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
57 of the 1,635 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
1% also reviewed:
Anker PowerLine... by
1% also reviewed:
Anker 24W 2ポート USB急速充電器... by Anker
1% also reviewed:
Anker PowerCore 10000 (10000mAh 大容量... by
57 of the 1,635 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 Brand Repeats
Brand Repeaters
10 of the 1,635 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 Deleted Reviews
- 0
- Reviews have been deleted
We have not discovered any deleted reviews for this product.
There are a few limitations to keep in mind regarding the Deleted Reviews test:
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.
N/A Phrase Repetition
We have not yet completed optimization for this test for Hanzi or Kanji.
N/A Incentivized Reviews
We have not yet completed optimization for this test for Hanzi or Kanji.