RESEARCH METHODS-QUALITATIVE STUDY DESIGNS-BASING ON NATURE OF THE INVESTIGATION-EXPERIMENTAL DESIGNS

There are so many types of experimental design and in this section, let’s look at those most commonly used in the health sciences, the humanities, public health, marketing, education, epidemiology, and social work.

These designs have been categorised as: 

• The after-only experimental design;
• he before-and-after experimental design;
• The control group design
• The double-control design;
• The comparative design
• The ‘matched control’ experimental design;

The placebo design