The identification of the right research design is critical for any research study. The research designs are frameworks to complete the research process on time like the project management framework that is used for managing and controlling complex projects to achieve critical milestones on time. It is important to control and manage variables in order to mitigate errors in various assumptions that are made to get best possible data. The experimental designs will provide a platform for evaluating the relationship between dependent and independent variables. The components of an experimental design are:
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. …show more content…
Required theory should be developed and available
2. A quantitative question is asked and should be free from legal and ethical issues to conduct experiments.
Pre-Experimental Design – A single group is studied in this design and no comparison is made between equivalent groups.
QUASI EXPERIMENTAL DESIGNS
The manipulation, control, and randomization are not required in Quasi-experimental designs. There are following three types of quasi experimental types:
1. Nonequivalent control group design – It is similar to experimental design and the difference is in assignment of control group subjects. The use of control group will increase the strength of the design. Good pre-test data will provide improved analysis and results. As subjects are not selected randomly may create threats to internal and external validity.
2. After only non equivalent control group design –All groups are treated equal after the independent variable is introduced in this design. This design is suited very well to study impacts of natural and manmade disaster.
3. Time series design- This design is used in determining trends where control group is not included and it strengthens research study significantly.
NONEXPERIMENTAL
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. …show more content…
Required theory should be developed and available
2. A quantitative question is asked and should be free from legal and ethical issues to conduct experiments.
Pre-Experimental Design – A single group is studied in this design and no comparison is made between equivalent groups.
QUASI EXPERIMENTAL DESIGNS
The manipulation, control, and randomization are not required in Quasi-experimental designs. There are following three types of quasi experimental types:
1. Nonequivalent control group design – It is similar to experimental design and the difference is in assignment of control group subjects. The use of control group will increase the strength of the design. Good pre-test data will provide improved analysis and results. As subjects are not selected randomly may create threats to internal and external validity.
2. After only non equivalent control group design –All groups are treated equal after the independent variable is introduced in this design. This design is suited very well to study impacts of natural and manmade disaster.
3. Time series design- This design is used in determining trends where control group is not included and it strengthens research study significantly.
NONEXPERIMENTAL