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OtterBox Defender Series Hybrid Case for iPad 2 (APL2-IPAD2-D9-E4OTR)
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From OtterBox
This report was last updated 7/2/2017.
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Last Updated: Jul 2, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Unverified Purchases
FAIL Suspicious Reviewers
FAIL Word Count Comparison
FAIL Overlapping Review History
WARN Rating Trend
WARN Reviewer Participation
PASS Phrase Repetition
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
using the U Tube video, installation was tedious, but complete. ... [Go to full review]
Sep 15, 2011
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
Best investment for your iPad. This survived my 3 year-old ... [Go to full review]
Oct 30, 2011
0%
TRUST
TRUST
- Unverified Purchaser
- Overrepresented word count (72 words)
- Never-Verified Reviewer
- Single-Day Reviewer (posted all reviews on Oct 30, 2011)
- Overlapping Review History: reviewed 1 of 9 top products
- Overrepresented Participation (posted 2 Reviews)
- Critical Reviewer (avg. rating: 3.0)
Analysis Details
Fail Unverified Purchases
125 of the 790 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 2.5 while the verified purchasers 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.
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
One-Hit Wonders
110 of the 790 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.
Never-Verified Reviewers
56 of the 790 reviewers have never written a verified purchase review. The Never-Verified Reviewers have rated this product an average of 2.4 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
34 of the 790 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 3.8 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 3.3. 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.
Single-Day Reviewers
60 of the 790 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 3.9 while all other reviewers rated this product an average of 3.3. 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.
Fail Word Count Comparison
-
- 30%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 235 reviews (or 30%) are within an overrepresented word count group. These reviews have rated this product an average of 2.8, while all other reviews have rated this product an average of 3.6. 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
Reviewers of this product have ALSO reviewed the following products:
3% also reviewed:
BlastCase 3 Pack of Premium Crystal Clear Screen... by Case
3% also reviewed:
Zeimax® 3 Pack of Universal Touch Screen Stylus... by Generic
3% also reviewed:
Chicken Soup for the Soul: A Book of Miracles:... by Jack Canfield
1% also reviewed:
Apple iPad 2 MC979LL/A Tablet (16GB, Wifi, White)... by Apple
1% also reviewed:
Griffin GB Survivor Extreme-Duty case for The New... by Griffin Technology
1% also reviewed:
SanDisk Ultra microSDHC Card Plus Adapter by SanDisk
72 of the 790 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 3.7 while the reviewers who have a more unique product review history rated this product an average of 3.3. 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
-
- 13%
- Created over 24 days
We counted 790 reviews for this product over the span of 2,196 days, an average of 0.4 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 3 or fewer reviews on any given day.
However, we see the following 24 days exceeding this threshold:In total, we found that 105 reviews were created on just 24 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 Reviewer Participation
-
- 41%
- 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 322 reviewers (or 41%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
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:
Show MoreShow Less
15 reviews
11 reviews
36 reviews
31 reviews
27 reviews
12 reviews
11 reviews
28 reviews
15 reviews
16 reviews
72 of the 790 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
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 3.8, while the average ease score for reviewers in this category is 4.3.
3.8 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
38 of the 790 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
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 790 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.
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.