What is the only way to determine a causal relationship between two variables?
A)observation
B)correlation
C)measurement
D)experimentation

Question

Quizplus · Accepted Answer

The only way to determine a causal relationship between two variables is through experimentation, where one variable (the independent variable) is manipulated to observe its effect on another variable (the dependent variable). This allows for control over extraneous variables and the ability to establish cause and effect relationships. Observation and correlation studies can suggest a relationship between variables, but cannot establish causation. Measurement is important in all research studies, but does not directly determine causation.

What Is the Only Way to Determine a Causal Relationship