please tell me if I am correct: a data collection method could be a face to face interview or an observation and a data collection instruments are summary report forms, questionaries, and behavioral diaries?

Question

Also could you explain to me what managerial research is?

Answer 1

Yes, all the ways you listed are legitimate ways to collect data.

http://www.answers.com/search?q=managerial+research
There are many definitions and explanations here. Be sure to read many!