Evidence-Based Practice / Unit 22 EBP 3168 short lesson, about 20 seconds
Pre-Experimental and Nonexperimental Designs
Captions available
The idea
Where randomization is impossible, designs without it are used, and they yield association rather than cause.
In practice
A single group measured before and after, with no comparison group.
Where people slip
Unit 06 ranked these and this chapter builds them. Choosing one is a decision about what claim the study will be able to make.
Your place on the trail
Every lesson rests on earlier ones and opens later ones. Tap any to jump.
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