sampling

• What is event sampling?

  Event sampling is a research method where specific events or behaviors are observed and recorded
• advantage of random sampling- reduces risk of researcher bias in participant selection
• limitation of opportunity sampling- leads to biased samples that may not represent the target population
• a strength of stratified sampling is that it ensures every subgroup of the population is represented proportionally
• What is stratified sampling?

  target population is divided into subgroups to represent a key group, participants from each key group (strata) are randomly selected
• What is opportunity sampling ?


  selecting the most convenient participants from a target population
• What is random sampling?


  selecting participants at random from a target population, such as using a random number generator
• What is systematic sampling ?


  a predetermined system used to select participants from the target population, e.g- every 3rd person from the population is chosen
• What is volunteer sampling?


  participants self select to take part in a study, usually from seeing an advert or poster
• Behavioural categories is when a target behaviour is broken down into observable, measurable components (operationalised)
• Event sampling- the established target behaviour is recorded every time it occurs
• Time sampling- A target individual or group is established, the researcher recorded their behaviour at a fixed time frame such as every 60 secs