Study of behaviour under controlled conditions is:

Study of behaviour under controlled conditions is: (a) Observation Method (b) Experimental Method (c) Development Method (d) Psycho-physical Method ✅ Correct Option: (b) Experimental Method Explanation: The experimental method is used to study behavior under controlled and regulated conditions. In this method, the researcher deliberately manipulates the independent variable to observe its effect on the dependent variable while controlling all other factors. This method allows the establishment of cause-and-effect relationships, making it the most scientific and objective method in psychology and education. For example, testing the effect of reinforcement on learning is best studied using experimental method. Control, manipulation, and measurement are the key features of experimental method. Hence, option (b) is correct. 10 PPSC-Relevant Facts: 1. Experimental method is scientific 2. Uses controlled conditions 3. Establishes cause–effect 4. Includes control group 5. Includes experimental group 6. Objective results 7. Widely used in psychology 8. Reliable method 9. Variables are manipulated 10. High-frequency PPSC MCQ