Along which parameter are media classified based on their capacity to facilitate shared meaning?

Which of the following is/are necessary for systematic sampling?

A) random-starting point and skip interval B) random-digit dialing and skip interval C) random-plus dialing, random selection and skip interval D) just a skip interval E) systematically partitioning data from the sample

Which is not an illusion of physical movement among screens?

A) scrolling B) context-sensitive pop-up windows C) onscreen dialogue D) None of the above.