The decision criteria used in selecting a public relations firm is different than criteria in selecting an advertising agency

In the time diagram below, which concept is being depicted?

a. Present value of an ordinary annuity b. Present value of an annuity due c. Future value of an ordinary annuity d. Future value of an annuity due

True experimental designs include the pretest-posttest control group design and the posttest-only control group design

Indicate whether the statement is true or false