Which of the following refers to a sampling approach in structured observation whereby a sampled individual is observed for a set period of time?

AFocal sampling ✓ Correct

BSnowball sampling

CPurposive sampling

DCluster sampling

Correct answer: (A) Focal sampling

Explanation

Focal sampling observes one sampled individual for a set period, recording all their relevant behaviour.

It is a core scan-versus-focal method in structured behavioural observation.

Snowball sampling is a non-probability recruitment method through referrals.

Purposive sampling selects units deliberately for their relevance to the study.

Cluster sampling randomly selects whole groups rather than watching one individual over time.

Focal sampling contrasts with scan sampling, which records many individuals at set instants.

Want more like this? Create a free account to practise a full test, track your progress, and get spaced-repetition review.