Which of the Following Is the Best Example of Converging

Multiple Choice

Which of the following is the best example of converging operations?

A) several studies use different operational definitions of aggression yet produce the same basic results
B) several studies of anxiety, each with a different operational definition of anxiety, each yields different results
C) researchers from different laboratories agree ahead of time to use the same operational definitions for intelligence
D) researchers from different laboratories collaborate on the same research program