Radio had to seek fragmented audiences to survive economically because __________ was "stealing" much of its audience and many of its biggest advertisers

What is one of the most effective ways to block a crowd for the small video

screen?

a. along the x-axis b. along the y-axis c. along the z-axis d. at a right angle to the camera e. along a diagonal

Which of the following is the drawback of the Solomon four group design?

a) Lack of randomization b) Limited range of independent variables that can be tested c) The design requires more time to conduct d) Not appropriate for younger subjects