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Billy Graham in Quotes
More product info From Thomas Nelson

Amazon Reviews for  Billy Graham in Quotes
Rating:
181 Ratings
181 Reviews
("Ratings" vs. "Reviews")
78% of potentially unnatural reviews removed (why?)
Adjusted:
View/Edit Adjustment
Jump to Report Card

Top products in Inspirational with authentic reviews:


Report Card

Fail Overall Grade
FAIL Suspicious Reviewers
WARN Rating Trend
WARN Unverified Purchases
WARN Incentivized Reviews
WARN Phrase Repetition
WARN Reviewer Participation
PASS Word Count Comparison
PASS Overlapping Review History
PASS Reviewer Ease
PASS Brand Repeats
PASS Deleted Reviews

Most Trusted Reviews

I love Billy Grahams sermons and now I have his ... [Go to full review]
Mar 18, 2014      
100% TRUST
  • Verified Purchaser
  • Take-Back Reviewer (25 deleted Reviews; avg. rating: 4.8)
  • Easy Grader (avg. rating: 4.4)


Least Trusted Reviews

I had the amazing privilege as a young high schooler ... [Go to full review]
Jun 12, 2013      
0% TRUST
  • Unverified Purchaser
  • Contains repetitive phrases (show)
  • Never-Verified Reviewer
  • Single-Day Reviewer (posted all reviews on Jun 12, 2013)
  • Overrepresented Participation (posted 2 Reviews)
  • Critical Reviewer (avg. rating: 4.0)


Analysis Details

Fail Suspicious Reviewers

Never-Verified Reviewers


46 of the 181 reviewers have never written a verified purchase review. While this is more Never-Verified Reviewers than we'd expect to see, it does not appear to have a significant impact on the overall rating.

from never-verified reviewers

from reviewers with at least one verified purchase review


4.6
4.6


Take-Back Reviewers


26 of the 181 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.

from take-back reviewers

from reviewers without previously deleted reviews


4.6
4.6


Single-Day Reviewers


2 of the 181 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 3.5 while all other reviewers rated this product an average of 4.6. 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.

from single-day reviewers

from non-single-day reviewers


3.5
4.6


Read more about our Suspicious Reviewers test.

Warn Rating Trend

  • 22%
  • Created over 10 days

We counted 181 reviews for this product over the span of 2,058 days, an average of 0.1 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 2 or fewer reviews on any given day.

However, we see the following 10 days exceeding this threshold:In total, we found that 39 reviews were created on just 10 days. This is an excessively high number of reviews submitted on these high volume days.

from reviews created on high volume days

from reviews created on normal volume days


4.7
4.6


Read more about our Rating Trend test.

Warn Unverified Purchases

150 of the 181 total reviews for this product are unverified purchases. This is an excessively large percentage of unverified purchases and it may indicate unnatural reviews.

from unverified purchasers

from verified purchases


4.5
4.9


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.

Warn Incentivized Reviews
On Oct 3, 2016, Amazon prohibited incentivized reviews, however we still test for them since there are still millions in our dataset.


33 of the 181 total reviews for this product admitted to receiving a free or discounted product in exchange for a review. This is more than we would expect see; the presences of at least one incentivized review indicates that there may be more, since not all reviewers will disclose that they had received an incentive to post a review.

from incentivized reviews

from non-incentivized reviews


4.6
4.6


Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.

Warn Phrase Repetition
Reviews that contain one of these phrases are NOT necessarily devalued; read more about how this test works here.



148 of the 181 total reviews for this product use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.

from reviews with substantial repetitive phrases

from reviews without substantial repetitive phrases


4.6
4.8


Read more about our Phrase Repetition test.

Warn Reviewer Participation

  • 55%
  • 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 100 reviewers (or 55%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.

From reviewers with an overrepresented participation

From reviewers with a properly represented participation


4.6
4.6


Read more about our Reviewer Participation test.

Pass Word Count Comparison

  • 28%
  • 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 50 reviews (or 28%) are within an overrepresented word count group. This is within an acceptable range and it does not appear to be significantly affecting the overall rating for this product.

from reviews with an overrepresented word count

from reviews with a properly represented word count


4.4
4.7


Read more about our Word Count Comparison test.

Pass Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:



86 of the 181 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.

from reviewers with substantial overlapping history

from reviewers without a substantial overlapping history


4.6
4.6


Read more about our Overlapping Review History 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 4.4, while the average ease score for reviewers in this category is 4.4.

4.4 Product's Average Ease Score

4.4 Category's Average Ease Score


4.4
4.4


Read more about our Reviewer Ease test.


Pass Brand Repeats

Brand Repeaters


32 of the 181 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.

from Brand Repeaters

from Non-Repeaters


4.7
4.6


Read more about our Brand Repeats test.

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:
  1. 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.
  2. We have no information on reviews that were never published in the first place.
  3. 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.
Read more about our Deleted Reviews test.