Question

an experiment that establishes a causal relationship between two variables is said to possess:
external validity.
a strong correlation.
internal validity.
reliability.

Explanation:

• External validity refers to how well results generalize to other contexts, not causal relationships.
• A strong correlation indicates a relationship but not causation.
• Internal validity is about whether an experiment correctly identifies causal relationships between variables.
• Reliability is about consistency of results, not causation.

Answer:

C. internal validity.