[{"observed_at":"2026-09-07 15:58:01.601642+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTMyMzg4NzUy","source_instructor_id":"rmp:1357778","instructor_name":"Yazhen Wang","course_label":"STAT461","course_id":"STAT 461","course_uid":"course_c3af14b05ef6845e7d2ecd4d","review_date":"2019-11-10 17:20:43 +0000 UTC","comment":"he is interested in the material, but cannot convey that at all to his students. There is no textbook, and he has very little study material offered in his lectures. He says that a very basic understanding of R is required, but has us doing complicated stuff that even some one like me with 2 years of R use cannot figure out. Avoid at all cost","source_url":"https://www.ratemyprofessors.com/professor/1357778","quality_rating":1.0,"difficulty_rating":5.0},{"observed_at":"2026-09-07 15:58:01.601642+00:00","run_id":"20260907T155543-ce3781c4","source_review_id":"UmF0aW5nLTMyMzEyNTIx","source_instructor_id":"rmp:1357778","instructor_name":"Yazhen Wang","course_label":"STAT461","course_id":"STAT 461","course_uid":"course_c3af14b05ef6845e7d2ecd4d","review_date":"2019-10-23 19:45:14 +0000 UTC","comment":"Avoid at all costs. Most disorganized professor I've ever hard. Didn't give any study material for tests and made them extremely tricky. His lectures are impossible to follow, and his homeworks are difficult. He also didn't follow a textbook so there was no way to find outside help.","source_url":"https://www.ratemyprofessors.com/professor/1357778","quality_rating":1.0,"difficulty_rating":4.0}]