This document discusses different types of non-probability sampling techniques used in research, including convenience sampling which selects subjects based on ease of access, judgmental sampling where researchers use their knowledge to select units, quota sampling which aims for a sample proportionate to a population of interest based on specific characteristics, and snowball sampling where initial participants are used to locate more participants who are difficult to find in the general population.

1. NON-PROBABILITY
SAMPLING
Non-probability sampling is a sampling
technique where the odds of any
member being selected for a sample
cannot be calculated.

2. TYPES OF SAMPLING
O CONVINIENCE SAMPLING
O JUDGMENTAL SAMPLING
O QUOTA SAMPLING
O SNOWBALL SAMPLING

3. CONVINIENCE SAMPLING
O Based on ease of accessibility
O subjects are selected because of their
convenient accessibility and proximity to
the researcher.

5. JUDGMENTAL SAMPLING
O researcher selects units to be sampled
based on their knowledge and
professional judgment.
O Hand picking from accesisible population
those individual judged most appropriate
for the study.

7. QUOTA SAMPLING
O researchers look for a specific
characteristic in their respondents, and
then take a tailored sample that is in
proportion to a population of interest.

9. SNOWBALL SAMPLING
O Snowball sampling is choosing the
participants to find more participants for
making a sample group
O Mostly researchers used this sampling
technique where participants are difficult
to locate in a general population.

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