What is operational definitions in psychology?

Describe alvord's tone in the two paragraphs on the history of dartmouth and its native american studies program (paras. 21-22)?

Which of these was not a direct result of the invention and subsequent use of eli whitney's cotton gin in 1793?

Braden’s savings account has dwindled to nothing, and he sinks further into depression and does nothing about it. which of these is his response to stress?