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The Librarian: Quest for the Spear
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From David N. Titcher
This report was last updated 3/2/2018.
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Report Info:
Last Updated: Mar 2, 2018
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Movies with authentic reviews:
Report Card
Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
FAIL Overlapping Review History
WARN Deleted Reviews
WARN Rating Trend
PASS Unverified Purchases
PASS Phrase Repetition
PASS Reviewer Participation
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
This movie is just lame, but you can not stop ... [Go to full review]
Jul 15, 2017
100%
TRUST
TRUST
- Verified Purchaser
- Critical Reviewer (avg. rating: 3.5)
Least Trusted Reviews
love it [Go to full review]
Dec 16, 2014
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (2 words)
- Take-Back Reviewer (17 deleted Reviews; avg. rating: 4.2)
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.3)
Analysis Details
Fail Suspicious Reviewers
Take-Back Reviewers
96 of the 835 reviewers have had at least one of their past reviews for another product deleted. This is an excessively large percentage of Take-Back 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 4.3, 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.
4.3 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
-
- 32%
- 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 270 reviews (or 32%) are within an overrepresented word count group. These reviews have rated this product an average of 4.4, 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
33% also reviewed:
The Librarian: Return to King Solomon's Mines by Noah Wyle
25% also reviewed:
Librarian : The Curse Of The Judas Chalice by Noah Wyle
14% also reviewed:
Frankenstein by Dover Publications
8% also reviewed:
A Princess of Mars (Illustrated) by Edgar Rice Burroughs
7% also reviewed:
The Iliad: A New Translation by Caroline Alexander by Homer
6% also reviewed:
Fahrenheit 451 by Ray Bradbury
5% also reviewed:
The Invisible Man by H.G. Wells
5% also reviewed:
And the Crown of King Arthur by Dean Devlin
Does not include products
from the same brand
from the same brand
345 of the 835 reviewers have substantial overlapping product review history. These reviewers have rated this product an average of 4.7 while the reviewers who have a more unique product review history rated this product an average of 4.1. 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 1 deleted Review for this product, with an average rating of 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.
Warn Rating Trend
-
- 15%
- Created over 23 days
We counted 835 reviews for this product over the span of 4,675 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 23 days exceeding this threshold:In total, we found that 128 reviews were created on just 23 days. This is an excessively high number of reviews submitted on these high volume days.
Pass Unverified Purchases
65 of the 835 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 Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.
Common Phrases in Titles:
12 reviews
13 reviews
14 reviews
19 of the 835 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 Participation
-
- 26%
- 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 213 reviewers (or 26%) 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 Brand Repeats
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
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.