Instruct: Classify Amazon reviews into positive or negative sentiment
Query: Errors abound

I was very disappointed with this textbook. The opening chapter is misleading as it only presents the quantitative view of research (even though the book does include a later chapter on ethnography). And too many errors! The statistics sections are unreliable and not useful to students; the appendix, in particular, contains errors and misleading information.In my personal opinion, I caution people from relying on the information in the textbook.