RANDOM STUDY DESIGN

 

INTRODUCTION:  In a random design, the study population groups as well as the experimental treatments are not predetermined but randomly assigned to become control or experimental groups.  Random assignment in experiments means that any individual or unit of the study population has an equal and independent chance of becoming a part of the experimental or control group or, in the case of multiple treatment modalities; any treatment has an equal and independent chance of being assigned to any of the population groups.  It is important to note that the concept of randomization can be applied to any of the experimental designs.

RELATED;

1.  Randomisation

2.  After only design

3.  The blind study designs

4.  Phases of clinical trials