What is the defining characteristic of experimental research?
What is the defining characteristic of experimental research?
Options:
(a) Resistance to manipulation
(b) Manipulation of the independent variable
(c) The use of open-ended questions
(d) Focuses only on local problems
✅ Correct Option: (b) Manipulation of the independent variable
Explanation (200+ words):
Experimental research is defined by the deliberate manipulation of the independent variable to observe its effect on a dependent variable. This manipulation allows researchers to establish cause-and-effect relationships. By systematically controlling conditions and variables, experimental research achieves high internal validity. Other characteristics such as random assignment and control groups support this defining feature, but manipulation remains the core element. This approach is fundamental in scientific inquiry and is widely used in educational research to test interventions, teaching methods, and learning strategies.
10 Related PPSC Facts:
Manipulation is essential. Establishes causality. Core of experimental design. Uses control techniques. Differentiates from other research. Theory-testing approach. High internal validity. Used in intervention studies. Quantitative in nature. Key topic in PPSC exams.