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Amazon Basics Industrial Alkaline Batteries (Pack of 40)
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From Amazon Basics
This report was last updated 7/21/2021.
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Report Info:
Note: While Amazon.it claims 40,584 Ratings, we counted 2,516 Reviews available on their site.
Note: We only analyze "reviews" and ignore one-tap "ratings".
Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Fail Overall Grade
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
FAIL Phrase Repetition
FAIL Overlapping Review History
WARN Rating Trend
PASS Unverified Purchases
PASS Reviewer Participation
PASS Brand Repeats
PASS Incentivized Reviews
PASS Deleted Reviews
Most Trusted Reviews
batterie ottime sia nel prezzo che nella durata in linea ... [Go to full review]
Apr 25, 2020
100%
TRUST
TRUST
- Verified Purchaser
- Brand Repeater (2 of 13 reviews for this brand; avg rating: 5.0)
- Critical Reviewer (avg. rating: 4.0)
Least Trusted Reviews
Ottimo prodotto qualità prezzo [Go to full review]
Dec 13, 2019
0%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (5 words)
- Contains repetitive phrases (show)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Overlapping Review History: reviewed 1 of 9 top products
- Easy Grader (avg. rating: 4.6)
Analysis Details
Fail Suspicious Reviewers
One-Hit Wonders
19 of the 2,516 reviewers have only reviewed this product. The One-Hit Wonders have rated this product an average of 3.1 while the reviewers who have posted more than one review have rated this product an average of 4.5. 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 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 4.5, 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.
4.5 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
-
- 60%
- 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 1,520 reviews (or 60%) are within an overrepresented word count group. These reviews have rated this product an average of 4.6, while all other reviews have rated this product an average of 4.4. 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.
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
285 reviews
(4.8/5)
(4.8/5)
216 reviews
(4.9/5)
(4.9/5)
29 reviews
(4.6/5)
(4.6/5)
68 reviews
(4.9/5)
(4.9/5)
29 reviews
(5.0/5)
(5.0/5)
52 reviews
(4.5/5)
(4.5/5)
24 reviews
(5.0/5)
(5.0/5)
162 reviews
(4.9/5)
(4.9/5)
34 reviews
(4.6/5)
(4.6/5)
524 of the 2,516 total reviews for this product use substantial repetitive phrases between them. These reviewers have rated this product an average of 4.8 while reviews without substantial repetitive phrases rated this product an average of 4.4. 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.
Fail Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
8% also reviewed:
AmazonBasics - Pile alcaline stilo (pacco da 20)... by
6% also reviewed:
Samsung MB-MC32GA EVO Plus Scheda microSD da 32... by SAMSUNG
4% also reviewed:
Fire TV Stick | Basic Edition - Versione... by Amazon
3% also reviewed:
Caffè Borbone Respresso, Miscela Blu - 100... by Caffè Borbone
3% also reviewed:
Kingston A400 SSD Unità a Stato Solido Interne by Kingston
3% also reviewed:
Fire TV Stick Lite con telecomando vocale Alexa |... by Amazon
2% also reviewed:
Kingston DataTraveler 100 G3-DT100G3/32GB-2P, USB... by Kingston Technology
Does not include products
from the same brand
from the same brand
613 of the 2,516 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 4.5. 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 Rating Trend
-
- 10%
- Created over 19 days
We counted 2,516 reviews for this product over the span of 738 days, an average of 3.4 reviews per day. If these reviews were created randomly, there would be a 99.9% chance that we would see 11 or fewer reviews on any given day.
However, we see the following 19 days exceeding this threshold:In total, we found that 261 reviews were created on just 19 days. Although any days with a larger number of reviews than expected is suspicious, these reviews do not appear to have a significant impact on the overall rating.
Pass Unverified Purchases
76 of the 2,516 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 Reviewer Participation
-
- 0%
- From reviewers with an overrepresented participation
We didn't find any participation groups that had a statistically significant greater concentration than what we'd expect to see in this category.
Read more about our Reviewer Participation test.
Read more about our Reviewer Participation test.
Pass Brand Repeats
Brand Repeaters
415 of the 2,516 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.
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.
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.