Which of the following are the means of control in experimental research?
A. Controlling Physical Settings
B. Choice of participants
C. Statistical analysis
D. Focussing on Short-term effects
E. Sidetracking the causal factors
Choose the correct answer from the options given below:

Correct option is A

The correct means of control in experimental research are:
· A. Controlling Physical Settings: Researchers control the environment or physical conditions to minimize external factors that might influence the outcome of the experiment.
· B. Choice of Participants: Careful selection of participants helps control for variables like age, gender, or other relevant factors that might impact the results.
· C. Statistical Analysis: Statistical methods are used to control for and account for variation in data, and to ensure that the results are reliable and not due to random chance.
D. Focusing on Short-term Effects and E. Sidetracking the Causal Factors are not control methods in experimental research. In fact, D refers to a type of focus in research rather than a method of control, and E would undermine the purpose of experimental research by neglecting essential causal relationships.
Information Booster: 1. Control in experimental research ensures that only the independent variable affects the dependent variable, isolating the cause-and-effect relationship.
2. Controlling physical settings eliminates external variables that could interfere with the results.
3. Participant selection is key to avoiding bias and ensuring the validity of the study.
4. Statistical analysis helps refine data interpretation, confirming that observed effects are significant and not due to random variation.