You witness a crime, and the police ask you to describe in detail what you saw. The memory test being utilized in this instance is

The term researchers use to describe activity that involves people using more than one type of media at a time is __________

a) mass media usage b) media multitasking c) mobile tasking d) multimedia usage

Dr. Salahma conducts a study on teenagers and product preference. In his study, he begins with a diverse sample of 13- to 19-year-olds. However, after the first few trials of the experiment many of the 15-year-old males in the experiment stop responding

to the questions and choose not to participate in a follow-up session. Dr. Salahma needs to be concerned about __________. a) random assignment b) selective attention c) cohort effects d) selective dropout