In an educational research, variable under study are being manipulated and controlled, what kind of research it is?

Correct option is B

The correct answer is (b), Experimental Research. In educational research where variables under study are being manipulated and controlled, the kind of research being conducted is Experimental Research. It is characterized by the deliberate manipulation and control of variables to observe their effect on other variables. This type of research design allows the researcher to establish cause-and-effect relationships between variables by applying interventions to a controlled group and comparing the outcomes to those of a group that did not receive the intervention. The key elements of experimental research include random assignment of participants to different groups (experimental and control) and the controlled manipulation of the independent variable(s) to assess its impact on the dependent variable(s), ensuring that any changes in the dependent variable can be attributed to the manipulation of the independent variable.
Information Booster:
• Quasi-Experimental Research: Similar to experimental research but lacks random assignment. Quasi-experiments are often used in situations where random assignment is not possible due to ethical or practical constraints.
• Ex-post Facto Research: Investigates possible cause-and-effect relationships by observing an existing condition or phenomenon without manipulating any variables. The researcher does not control the variables but rather studies them as they naturally occur.
• Mixed Method Research: Combines elements of both quantitative and qualitative research methods to provide a more comprehensive understanding of a research problem. It might involve collecting, analyzing, and integrating both quantitative (e.g., surveys, experiments) and qualitative (e.g., interviews, observations) data in a single study or series of studies.