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IDENTIFY WHAT SAMPLING TECHNIQUE USED
A researcher assigns numbers to 1,000 employees and uses a random number generator to pick 100.
SIMPLE RANDOM SAMPLING
IDENTIFY WHAT SAMPLING TECHNIQUE USED
A school surveys 15% of students from each grade level (freshman, sophomore, etc.).
STRATIFIED SAMPLING
IDENTIFY WHAT SAMPLING TECHNIQUE USED
A researcher selects every 10th book from a library shelf.
SYSTEMATIC SAMPLING
IDENTIFY WHAT SAMPLING TECHNIQUE USED
A researcher surveys friends and family via WhatsApp.
CONVENIENCE SAMPLING
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Recruiting rare disease patients and asking them to refer others.
SNOWBALL SAMPLING
IDENTIFY WHAT SAMPLING TECHNIQUE
a researcher studying the experiences of individuals living with chronic pain, and therefore selecting a sample of individuals who have been diagnosed with chronic pain.
PURPOSIVE SAMPLING
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Every member has an equal chance.
SIMPLE RANDOM SAMPLING
IDENTIFY THE SAMPLING TECHNIQUE
Population is divided into subgroups (strata) based on shared characteristics, then samples are taken proportionally.
STRATIFIED SAMPLING
IDENTIFY THE SAMPLING TECHNIQUE
Every nth member is chosen from a list after a random start.
SYSTEMATIC SAMPLING
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Selecting participants who are easiest to reach.
CONVENIENCE SAMPLING
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Participants refer other potential participants, building the sample through networks.
SNOWBALL SAMPLING
IDENTIFY THE SAMPLING TECHNIQUE
a non-probability technique where researchers deliberately select participants, cases, or events based on specific characteristics, knowledge, or experience essential to the study.
PURPOSIVE SAMPLING
What is the probability of getting a number less than 3 in a single roll of a dice?
1/3
What is the probability of getting a number greater than 3 in a single roll of a dice?
1/2
What is the probability of getting a number greater than 4 in a single roll of a dice?
1/3