In experimental design, diffusion refers to

a. people leaving a study
b. people changing over time
c. a treatment effect spreading from group to group
d. a treatment having less and less effect
e. a treatment affecting a control group


c. a treatment effect spreading from group to group

Communication & Mass Media

You might also like to view...

In addition to a summary of the group's discussion and decisions, the minutes of a meeting should also include the exact time the meeting was called to order and adjourned

Indicate whether the statement is true or false

Communication & Mass Media

How would you define social media based on the textbook reading? What are three attributes that are considered to be part of social media?

What will be an ideal response?

Communication & Mass Media

According to McCroskey's "Personal Report of Public Speaking Anxiety," at least 90% of college

students report at least A) high anxiety B) moderate anxiety C) low anxiety D) no anxiety

Communication & Mass Media

Whorf observed that the Hopi don’t have tenses, or any constructions or expressions referring to ______.

Fill in the blank(s) with the appropriate word(s).

Communication & Mass Media