In sampling, the lottery method is used for

Concept

In probability sampling, eligible units are selected through a chance mechanism rather than researcher preference. Randomisation is the general principle that gives units known or equal selection opportunities.

Application

1. Write each eligible unit on an identical slip.

2. Mix all slips thoroughly.

3. Draw one slip blindly so that selection depends on chance.

This procedure uses chance to select a unit and therefore operationalises randomisation.

Contrast

• Interpretation assigns meaning to observations after data have been collected and analysed.

• Theorisation develops or connects explanatory propositions from concepts and findings.

• Conceptualisation defines an abstract idea and specifies how it will be understood in a study.

Cross-check

Changing the order of the mixed slips does not systematically favour any named unit; selection still depends on the draw. That confirms the use of a chance mechanism.

Result

The lottery method is used for randomisation.