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Systematic Theology, Second Edition: An Introduction to Biblical Doctrine
More product info
From Wayne A. Grudem
This report was last updated 2/21/2024.
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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Report Info:
Note: We only analyze "reviews" and ignore one-tap "ratings".
*This is only a Preliminary Report
Our full report will examine much more data, but requires considerably more processing power. Enter your email to receive a notification when the full report is complete.
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Report Card
Warn Overall Grade
FAIL 
Suspicious Reviewers
Suspicious ReviewersWARN Reviewer Ease
Reviewer EaseWARN Phrase Repetition
Phrase RepetitionPASS Rating Trend
Rating TrendPASS Unverified Purchases
Unverified PurchasesPASS Word Count Comparison
Word Count ComparisonPASS Overlapping Review History
Overlapping Review HistoryPASS Brand Repeats
Brand RepeatsPASS Incentivized Reviews
Incentivized ReviewsPASS Deleted Reviews
Deleted ReviewsN/A Reviewer Participation
Reviewer Participation
Most Trusted Reviews
On page 1 Grudem defines "systematic theology" as any study ... [Go to full review]
Sep 29, 2023
100%
TRUST
TRUST
-
Verified Purchaser
-
Take-Back Reviewer (2 deleted Reviews; avg. rating: 5.0) -
Easy Grader (avg. rating: 4.8)
Critical Reviewer (avg. rating: 4.1)
Overlapping Review History: reviewed 1 of 9 top products
Least Trusted Reviews
This book is an awesome read [Go to full review]
Dec 18, 2023
19%
TRUST
TRUST
-
Verified Purchaser
-
Contains repetitive phrases (show)
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One-Hit Wonder -
Easy Grader (avg. rating: 5.0)
Analysis Details
Fail Suspicious Reviewers
Suspicious Reviewers
One-Hit Wonders
Approximately 35% of reviewers have only reviewed this product. This is an excessively large percentage of One-Hit Wonders which may indicate unnatural reviews.
Warn Reviewer Ease
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 4.7, while the average ease score for reviewers in this category is 4.3. While this discrepancy is rather large, it is not quite large enough to rule out the possibility of it being due random chance.
4.7 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Warn Phrase Repetition
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:
~82% of reviews
(5.0/5)
(5.0/5)
~18% of reviews
(3.0/5)
(3.0/5)
~100% of reviews
(4.6/5)
(4.6/5)
Approximately 45% of reviews use substantial repetitive phrases between them. This is an excessively large percentage which may indicate unnatural reviews.
Pass Rating Trend
Rating Trend
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- <10%
- Created on high-volume days
We didn't notice any signals that would indicate reviews were created unevenly over time.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Unverified Purchases
Unverified Purchases
14 of the 1,269 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
Word Count Comparison
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- <10%
- 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 Overlapping Review History
Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
~20% also reviewed:
Voyage to Bottom of the Sea - Season 2, Vol. 1 by TCFHE
Less than approximately 10% of 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 Brand Repeats
Brand Repeats
Brand Repeaters
We didn't detect a substantial amount of Brand Repeaters.
Pass Incentivized Reviews
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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- <10%
- 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
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.