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Windows 7 Professional SP1 64bit (OEM) System Builder DVD 1 Pack [Old Version]
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From Microsoft Software
This report was last updated 12/21/2018.
Refresh the report to view the most up-to-date data available:
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Pass Overall Grade
FAIL Rating Trend
FAIL Suspicious Reviewers
WARN Deleted Reviews
PASS Unverified Purchases
PASS Word Count Comparison
PASS Phrase Repetition
PASS Overlapping Review History
PASS Reviewer Participation
PASS Reviewer Ease
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
Worth it! Just a few glitches with continually launching Explorer. ... [Go to full review]
Oct 16, 2013
100%
TRUST
TRUST
- Verified Purchaser
- Take-Back Reviewer (1 deleted Review; avg. rating: 4.0)
- Critical Reviewer (avg. rating: 4.1)
Least Trusted Reviews
It was a great purchase. It was just what my ... [Go to full review]
May 20, 2013
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented Participation (posted 12 Reviews)
- Easy Grader (avg. rating: 4.9)
Analysis Details
Fail Rating Trend
-
- 2%
- Created over 3 days
We counted 542 reviews for this product over the span of 2,795 days, an average of 0.2 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 3 days exceeding this threshold:In total, we found that 12 reviews were created on just 3 days. The reviews on these high volume days have rated this product an average of 3.6 while reviews from other days 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.
Fail Suspicious Reviewers
Take-Back Reviewers
113 of the 542 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 4.6 while the reviewers who don't have any deleted reviews in their history have rated this product an average of 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.
Warn Deleted Reviews
We discovered a total of 14 deleted Reviews for this product, with an average rating of 4.4. 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.
Pass Unverified Purchases
43 of the 542 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 Word Count Comparison
-
- 0%
- Have an overrepresented word count
We didn't find any review word count groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Word Count Comparison test.
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:
Show MoreShow Less
9 reviews
(4.2/5)
(4.2/5)
5 reviews
(4.6/5)
(4.6/5)
15 reviews
(4.6/5)
(4.6/5)
12 reviews
(4.5/5)
(4.5/5)
13 reviews
(4.5/5)
(4.5/5)
6 reviews
(4.5/5)
(4.5/5)
7 reviews
(3.9/5)
(3.9/5)
10 reviews
(4.4/5)
(4.4/5)
5 reviews
(4.8/5)
(4.8/5)
9 reviews
(4.0/5)
(4.0/5)
58 of the 542 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
4% also reviewed:
TRENDnet Unmanaged Gigabit GREENnet Desktop... by TRENDnet
4% also reviewed:
ASUS 24x DVD-RW Serial-ATA Internal OEM Optical... by ASUS
4% also reviewed:
WD Blue 6TB PC Hard Drive - 5400 RPM Class, SATA... by Western Digital
3% also reviewed:
Western Digital Caviar Black 2 TB SATA III 7200... by Western Digital
3% also reviewed:
Mediabridge HDMI Cable (25 Feet) Supports... by Mediabridge
3% also reviewed:
(Old Model) Seagate 5TB Desktop HDDSATA 6Gb/s NCQ... by Seagate
2% also reviewed:
Brother Printer Toner Cartridge TN336X Series by BROTHER
Does not include products
from the same brand
from the same brand
83 of the 542 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 Reviewer Participation
-
- 29%
- 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 158 reviewers (or 29%) are within an overrepresented participation group. 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 4.3, while the average ease score for reviewers in this category is 4.3.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Pass Brand Repeats
Brand Repeaters
23 of the 542 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 542 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.