The Identification Of The Right Research Design Essay
1. Manipulation – The researcher will change a variable of a group with some treatment and observe its impact on another group which is not treated in any manner.
2. Control – The results from manipulation of an variable using control mechanism will provide evidence for recording relationship between variables.
3. Randomization – Target subjects are selected from sampled population and assigned randomly to various groups of independent variables.
Experimental design will provide better control and minimize threats to validity. It is also possible to test cause and effect relationships in experimental design. There are some disadvantages with experimental design. It is not possible to manipulate all variables and some experiments are limited due to ethical reasons and technical limitations.
The experimental design is applicable, if the following…