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Indiana Jones and The Last Crusade
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From Harrison Ford
This report was last updated 10/20/2018.
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Report Info:
Note: While Amazon.com claims 1,046 Ratings, we counted 1,045 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".
Top products in TV with authentic reviews:
Report Card
Fail Overall Grade
FAIL Deleted Reviews
FAIL Suspicious Reviewers
FAIL Reviewer Ease
FAIL Word Count Comparison
WARN Rating Trend
WARN Reviewer Participation
PASS Unverified Purchases
PASS Phrase Repetition
PASS Overlapping Review History
PASS Brand Repeats
PASS Incentivized Reviews
Most Trusted Reviews
After two successful big-budget starring vehicles, we finally get an ... [Go to full review]
May 1, 2018
100%
TRUST
TRUST
- Unverified Purchaser
- Take-Back Reviewer (8 deleted Reviews; avg. rating: 4.0)
- Brand Repeater (4 of 659 reviews for this brand; avg rating: 4.3)
- Overlapping Review History: reviewed 6 of 9 top products
- Critical Reviewer (avg. rating: 3.5)
Least Trusted Reviews
A classic and the best of all the IJ's movies [Go to full review]
Jan 26, 2017
0%
TRUST
TRUST
- Verified Purchaser
- Created on a high volume day
- Overrepresented word count (10 words)
- Take-Back Reviewer (1 deleted Review; avg. rating: 5.0)
- Overrepresented Participation (posted 14 Reviews)
- Easy Grader (avg. rating: 4.9)
Analysis Details
Fail Deleted Reviews
We discovered a total of 60 deleted Reviews for this product, with an average rating of 4.8. 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.
Fail Suspicious Reviewers
Take-Back Reviewers
142 of the 1,045 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 4.4, 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.
4.4 Product's Average Ease Score
4.3 Category's Average Ease Score
Read more about our Reviewer Ease test.
Fail Word Count Comparison
-
- 68%
- 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 710 reviews (or 68%) 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 4.6. 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.
Warn Rating Trend
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- 60%
- Created over 42 days
We counted 1,045 reviews for this product over the span of 7,148 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 42 days exceeding this threshold:In total, we found that 622 reviews were created on just 42 days. This is an excessively high number of reviews submitted on these high volume days.
Warn Reviewer Participation
-
- 32%
- 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 334 reviewers (or 32%) are within an overrepresented participation group. While this is more reviews from overrepresented participation groups than we'd expect to see, these reviews do not appear to have a significant impact on the overall rating.
Pass Unverified Purchases
132 of the 1,045 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.
130 of the 1,045 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:
16% also reviewed:
Indiana Jones and the Raiders of the Lost Ark... by Harrison Ford
11% also reviewed:
Indiana Jones and the Temple of Doom [Blu-ray] by Harrison Ford
9% also reviewed:
Indiana Jones and the Kingdom of the Crystal Skull by David Koepp
9% also reviewed:
The Sign of the Four (Sherlock Holmes Book 2) by Sir Arthur Conan Doyle
5% also reviewed:
Spectre by Daniel Craig
4% also reviewed:
The Terminator [Blu-ray] by Arnold Schwarzenegger
4% also reviewed:
Interstellar (4K Ultra HD) by Jessica Chastain
Does not include products
from the same brand
from the same brand
300 of the 1,045 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
194 of the 1,045 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.