What type of design is shown in the accompanying figure?

0 X 0 0 X 0

Question 12 options:

	a. add-remove formed by expanding program and observation elements over time
	b. two-treatment design formed by expanding across programs
	c. basic pre-post randomized experimental design
	d. randomized experiment expanded with a non-equivalent control group

What type of design is shown in the accompanying figure?

X 0

Question 15 options:

	a. post-test only randomized experiment
	b. pretest-posttest non-equivalent groups quasi-experiment
	c. posttest-only non-experiment
	d. double-pretest, single-group design created by expanding across time