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NBA JAM by EA SPORTS
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From Electronic Arts Inc.
This report was last updated 11/8/2018.
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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Jump to Report Card
Report Card
Warn Overall Grade
FAIL Rating Trend
FAIL Phrase Repetition
FAIL Overlapping Review History
WARN Deleted Reviews
WARN Suspicious Reviewers
WARN Word Count Comparison
WARN Reviewer Participation
PASS Unverified Purchases
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
This app is not working on my Kindle Fire. The ... [Go to full review]
Mar 21, 2015
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Easy Grader (avg. rating: 4.7)
Least Trusted Reviews
This is a great game. For 99 cents it is ... [Go to full review]
Jun 20, 2012
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (22 words)
- Overrepresented Participation (posted 4 Reviews)
- Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Rating Trend
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- 17%
- Created over 13 days
We counted 777 reviews for this product over the span of 2,175 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 4 or fewer reviews on any given day.
However, we see the following 13 days exceeding this threshold:In total, we found that 133 reviews were created on just 13 days. The reviews on these high volume days have rated this product an average of 4.0 while reviews from other days 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.
Fail 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:
21 reviews
(2.6/5)
(2.6/5)
8 reviews
(2.6/5)
(2.6/5)
Common Phrases in Titles:
11 reviews
(2.3/5)
(2.3/5)
11 of the 777 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 2.0 while reviews without substantial repetitive phrases 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
5% also reviewed:
Temple Run by Imangi Studios, LLC
4% also reviewed:
Subway Surfers by SYBO Games
3% also reviewed:
Temple Run 2 by Imangi Studios, LLC
2% also reviewed:
Flappy Wings (not Flappy Bird) by Green Chili Games UG
1% also reviewed:
101-in-1 Games by Nordcurrent Group UAB
1% also reviewed:
BLOOD & GLORY by Glu Mobile Inc.
1% also reviewed:
Hill Climb Racing by Fingersoft
1% also reviewed:
Injustice: Gods Among Us (Kindle Tablet Edition) by Warner Bros
142 of the 777 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.1 while the reviewers who have a more unique product review history 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.
Warn Deleted Reviews
We discovered a total of 21 deleted Reviews for this product, with an average rating of 4.3. 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.
Warn Suspicious Reviewers
One-Hit Wonders
176 of the 777 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.
Take-Back Reviewers
13 of the 777 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.
Warn Word Count Comparison
-
- 72%
- 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 563 reviews (or 72%) are within an overrepresented word count group. This is an excessively high number of reviews in overrepresented word count groups.
Warn Reviewer Participation
-
- 92%
- 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 712 reviewers (or 92%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Unverified Purchases
65 of the 777 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 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 3.9, while the average ease score for reviewers in this category is 4.2.
3.9 Product's Average Ease Score
4.2 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
36 of the 777 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.
-
- 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. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.