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George MacDonald: An Anthology
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From C. S. Lewis
This report was last updated 10/10/2018.
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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Custom Stores with authentic reviews:
Report Card
Fail Overall Grade
FAIL Rating Trend
FAIL Brand Repeats
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
FAIL Phrase Repetition
FAIL Reviewer Participation
WARN Unverified Purchases
PASS Overlapping Review History
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
We couldn't find any quality reviewsLeast Trusted Reviews
MacDonald was a master Christian apologist of the late 1800s, ... [Go to full review]
Aug 5, 2003
0%
TRUST
TRUST
- Unverified Purchaser
- Contains repetitive phrases (show)
- Never-Verified Reviewer
- Brand Repeater (15 of 277 reviews for this brand; avg rating: 4.9)
- Overlapping Review History: reviewed 6 of 9 top products
- Critical Reviewer (avg. rating: 4.2)
Analysis Details
Fail Rating Trend
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- 58%
- Created over 1 day
We counted 19 reviews for this product over the span of 4,730 days, an average of 0.0 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 1 or fewer reviews on any given day.
However, we see the following 1 day exceeding this threshold:In total, we found that 11 reviews were created on just 1 day. The reviews on these high volume days have rated this product an average of 5.0 while reviews from other days have rated this product an average of 4.0. 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 Brand Repeats
Brand Repeaters
12 of the 19 reviewers have reviewed other products for this brand. While this is more Brand Repeaters than we'd expect to see, the discrepancy in ratings between the Brand Repeaters and non-repeaters isn't significant enough to rule out the possibility of it being due to random chance.
Brand Monogamists
11 of the 19 reviewers have reviewed multiple products, but only for this brand. This is an excessively large percentage of Brand Monogamists which may indicate unnatural reviews.
Fail Suspicious Reviewers
Never-Verified Reviewers
15 of the 19 reviewers have never written a verified purchase review. This is an excessively large percentage of Never-Verified Reviewers which may indicate unnatural reviews.
Single-Day Reviewers
11 of the 19 reviewers have written multiple reviews but posted all of them on a single day. This is an excessively large percentage of Single-Day Reviewers which may indicate unnatural reviews.
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 4.8, while the average ease score for reviewers in this category is 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.
4.8 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
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- 63%
- 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 12 reviews (or 63%) are within an overrepresented word count group. These reviews have rated this product an average of 5.0, while all other reviews have rated this product an average of 3.9. 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:
Show MoreShow Less
11 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
10 reviews
(5.0/5)
(5.0/5)
11 reviews
(5.0/5)
(5.0/5)
Common Phrases in Titles:
11 reviews
(5.0/5)
(5.0/5)
2 reviews
(4.5/5)
(4.5/5)
13 of the 19 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.9 while reviews without substantial repetitive phrases rated this product an average of 3.8. 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 Reviewer Participation
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- 68%
- 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 13 reviewers (or 72%) are within an overrepresented participation group. These reviews have rated this product an average of 4.9, while all other reviews have rated this product an average of 3.8. 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 Unverified Purchases
16 of the 19 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate 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.
Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
11% also reviewed:
Grant A Biography Revised Edition by William S Mcfeely
11% also reviewed:
They Called Him Stonewall by Burke Davis
11% also reviewed:
The Aeneid by Virgil
11% also reviewed:
Catch-22 by Joseph Heller
11% also reviewed:
The 100: A Ranking Of The Most Influential... by Michael H. Hart
11% also reviewed:
Porter Rockwell: A Biography by Richard Lloyd Dewey
1 of the 19 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 Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.
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- 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.
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.