The study of the behaviour of humans and non-humans in the natural environment without any manipulation of variables is called

AQuasi-experimental research

BObservational research ✓ Correct

CSubjective research

DAnthropometric research

Correct answer: (B) Observational research

Explanation

Studying behaviour in natural settings without manipulating variables is observational research.

The researcher records what occurs without intervening in it.

Quasi-experimental research still manipulates conditions but lacks random assignment.

Subjective research is not a recognised methodological category here.

Anthropometric research measures the human body's physical dimensions.

Naturalistic observation preserves the ecological validity of the behaviour.

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