Knowing More Demanding More? Rating Differences in Amazon and Goodreads PDF Free Download
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Knowing More Demanding More?
Knowing More Demanding More?
Rating Differences in and
▪Regular book readers on
online shopping website
▪Low standards
▪Knowledgeable book readers
on book review website
▪Higher standards
“Are the ratings of
Amazon and
Goodreads reviewers
different?”
Rating Distribution
Difference by Fiction and Nonfiction
41
95
56
8
0
38
109
48
5
0
< 4.0
4.0 - 4.2
4.3 - 4.5
4.6 - 4.8
4.9 - 5.0
Goodreads - Fiction Goodreads - Nonfiction
3
4
52
133
8
0
7
34
147
12
< 4.0
4.0 - 4.2
4.3 - 4.5
4.6 - 4.8
4.9 - 5.0
Amazon - Fiction Amazon - Nonfiction
3
3.2
3.4
3.6
3.8
4
4.2
4.4
4.6
4.8
5
Ratings are 4.4 or higher.
4.3
4.9
4.525
4.74.7
3.6
4.7
4
4.3
4.627
4.128
311
86
280
20
79
204
104
13 0
< 4.0 4.0 - 4.2 4.3 - 4.5 4.6 - 4.8 4.9 - 5.0
Amazon Goodreads
4.6-4.8 are most common.
4.0-4.2 are most common.
Most Frequent Ratings
▪400 book ratings were collected from Amazon and
Goodreads for the same books.
▪Data include ratings for 200 fiction and 200
nonfiction books to test differences in book genres.
Data Collection
Research Question
Amazon rating is 0.499 higher than
Goodreads (4.627-4.128) on average.
Higher ratings are more common
for fiction than nonfiction.
Higher ratings are more common
for nonfiction than fiction.
Average Difference
Ratings are between 3 and 4.4.
Findings
▪Amazon reviewers tend to give higher ratings
than Goodreads reviewers (0.499 higher).
▪On Amazon, higher ratings are more often
given to fiction books.
▪On Goodreads, higher ratings are more often
given to nonfiction books.
The ratings of Amazon and Goodreads
for books are clearly different:
Conclusion
Knowledgeable reviewers (Goodreads
reviewers) are more demanding of book
quality, so they leave lower ratings.
