how can I find Robert Gagne's "six variety of performance"
Answer
Sorry about the delay in answering.
This is a bit of a tough thing to answer, because he didn't write about this in articles that we have access to. He published a book that had a chapter about it in 1965 titled The Conditions of Learning, however that is not in our online subscription databases. I found a link to chapter 24 of this book that includes a discussion of this topic, at http://dlibed.kku.ac.th/e_lib2/exxe/46.pdf
There were references to his work, including this topic, in a book in ebrary titled Cases on Online and Blended Learning Technologies in Higher Education : Concepts and Practices. This was the only ebrary title I found when searching for the phrase “Six varieties of performance” (using quotes).