The experimental design which best represents the above random survey is: B. one-group pretest-posttest design.
An experimental design can be defined as a research method (concept) in which a controlled experimental factor is objectively and efficiently subjected to a special treatment (intervention), in order to compare it with a factor (controlled variable) that is kept constant. Thus, it is used to maximize precision in an experiment and to reach a specific conclusion on a hypothesis statement.
Basically, there are three (3) main types of experimental design and these include:
1. Quasi-experimental research design
2. True experimental research design
3. Pre-experimental research design
Under the pre-experimental research design, we have three (3) forms of experimental design and these are:
- One-shot case study research design
- One-group pretest-posttest design
One-group pretest-posttest research design is mostly used by behavioral researchers to determine the effect of a special treatment (intervention) on a given sample of participants, especially by first utilizing a single group of participants (one-group design) before the treatment is implemented and once after the treatment is implemented.
In conclusion, a one-group pretest-posttest research design is the experimental design which best represents the above random survey.
Read more on experimental design here: brainly.com/question/13284940
