Metal Lathe for Home Machinists (Fox Chapel Publishing) Project-Based Course, Reference Guide,...
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From Harold Hall
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Top products in Home Improvement & Design with authentic reviews:
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Most Trusted Reviews
TRUST
- Verified Purchaser
- Take-Back Reviewer (10 deleted Reviews; avg. rating: 4.9)
- Brand Repeater (5 of 393 reviews for this brand; avg rating: 4.4)
- Overlapping Review History: reviewed 5 of 9 top products
- Easy Grader (avg. rating: 4.8)
Least Trusted Reviews
TRUST
- Verified Purchaser
- Overrepresented word count (3 words)
- Take-Back Reviewer (1 deleted Review; avg. rating: 3.0)
- Overrepresented Participation (posted 25 Reviews)
- Critical Reviewer (avg. rating: 4.3)
Analysis Details
3 of the 114 total reviews for this product are unverified purchases. The unverified purchasers have rated this product an average of 1.3 while the verified purchasers have 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.
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.
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- 57%
- 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 2 groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 65 reviews (or 57%) are within an overrepresented word count group. These reviews have rated this product an average of 4.5, while all other reviews have rated this product an average of 3.4. 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.
Take-Back Reviewers
49 of the 114 reviewers have had at least one of their past reviews for another product deleted. While this is more Take-Back Reviewers than we'd expect to see, the discrepancy in ratings between the Take-Back Reviewers and reviewers who don't have any deleted reviews in their history isn't significant enough to rule out the possibility of it being due to random chance.
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- 79%
- From reviewers with an overrepresented participation
We see the following 4 participation groups with a statistically significant greater concentration than what we'd expect to see:In total, we found that 90 reviewers (or 79%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
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- 0%
- Created on high-volume days
Read more about our Rating Trend test.
(4.0/5)
(2.3/5)
(5.0/5)
(3.5/5)
(4.5/5)
(1.0/5)
(3.0/5)
5 of the 114 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.
18% also reviewed:
Basic Lathework for Home Machinists (Fox Chapel... by Stan Bray
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How to Run a Lathe: The Care and Operation of a... by John Joseph O'Brien
7% also reviewed:
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6% also reviewed:
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4% also reviewed:
BL-123 Pair of 1" x 2" x 3"... by 1-2-3 Blocks
4% also reviewed:
How To Run A Lathe: For The Beginner: How To... by South Bend Lathe Works
4% also reviewed:
Dividing (Workshop Practice) by Harold Hall
4% also reviewed:
Titan 15613 1/2-Inch Drive x 13mm Hex Bit Socket by Titan
4% also reviewed:
Battery Tender Junior 12V, 800mA Battery Charger... by Battery Tender
44 of the 114 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.
4.3 Product's Average Ease Score
4.4 Category's Average Ease Score
Read more about our Reviewer Ease test.
Brand Repeaters
2 of the 114 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.
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- 0%
- Admitted to receiving an incentive
Read more about our Incentivized Reviews test. Check out our study showing that Incentivized Reviewers are much more likely to leave a positive review.
- 0
- Reviews have been deleted
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.