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Hartz Bird Diet Food for Medium Birds, 10-Pound
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From HARTZ
This report was last updated 5/4/2017.
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Report Info:
Last Updated: May 4, 2017
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Note: We only analyze "reviews" and ignore one-tap "ratings".
Report Card
Warn Overall Grade
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
WARN Deleted Reviews
WARN Reviewer Participation
PASS Rating Trend
PASS Unverified Purchases
PASS Phrase Repetition
PASS Overlapping Review History
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
It's a good bird food. But the packaging isn't good... ... [Go to full review]
Jul 24, 2016
100%
TRUST
TRUST
- Unverified Purchaser
- Contains repetitive phrases (show)
- Never-Verified Reviewer
- Critical Reviewer (avg. rating: 3.5)
Least Trusted Reviews
Birds loved their food [Go to full review]
Oct 22, 2016
35%
TRUST
TRUST
- Verified Purchaser
- Overrepresented word count (4 words)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Overrepresented Participation (posted 10 Reviews)
- Easy Grader (avg. rating: 4.8)
Analysis Details
Fail Suspicious Reviewers
Take-Back Reviewers
25 of the 122 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 4.5, 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
-
- 37%
- 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 45 reviews (or 37%) are within an overrepresented word count group. These reviews have rated this product an average of 4.8, 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.
Warn Deleted Reviews
We discovered a total of 1 deleted Review for this product, with an average rating of 5. 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 Reviewer Participation
-
- 55%
- 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 67 reviewers (or 55%) are within an overrepresented participation group. This is an excessively high number of reviewers in overrepresented participation groups.
Pass Rating Trend
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- 0%
- Created on high-volume days
We counted 122 reviews for this product over the span of 1,992 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. We didn't find any days exceeding this threshold.
Read more about our Rating Trend test.
Read more about our Rating Trend test.
Pass Unverified Purchases
17 of the 122 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 Reviews:
Show MoreShow Less
2 reviews
2 reviews
2 reviews
3 reviews
3 reviews
5 reviews
13 of the 122 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 Overlapping Review History
Reviewers of this product have ALSO reviewed the following products:
6% also reviewed:
Prevue Hendryx Pet Products Wrought Iron Flight... by Prevue Hendryx
5% also reviewed:
The Man In The High Castle - Season 1 (4K UHD) by Alexa Davalos
3% also reviewed:
JW Pet Company Clean Water Silo Waterer Bird... by JW Pet
2% also reviewed:
Penn Plax Clip-On Bird Bath – Comes With... by Penn-Plax
2% also reviewed:
Kaytee Forti Diet Egg-Cite Food for Parakeets,... by Kaytee
2% also reviewed:
Amazon Store Card by Synchrony Bank
2% also reviewed:
Carrington Farms Organic Extra Virgin Coconut Oil by Carrington Farms
Does not include products
from the same brand
from the same brand
29 of the 122 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 Repeaters
2 of the 122 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.