DP Understanding Sampling in Psychology

What is a target population?

• A sample taken from a larger group

• A group of volunteers for a study

• A random selection of individuals

• A group of people that researchers want to describe or understand

What is external validity?

• The method of selecting participants

• The accuracy of the sample size

• The reliability of the research findings

• The ability to generalize results to the target population

What is sampling bias?

• When participants are randomly selected

• When the sample does not represent the target population

• When the sample size is too large

• When the study is conducted in a controlled environment

Which sampling technique involves participants volunteering?

• Self-selected sampling

• Random sampling

• Stratified sampling

• Opportunity sampling

What is opportunity sampling?

• A method where everyone has an equal chance of being selected

• Selecting participants randomly from the entire population

• Choosing participants based on specific characteristics

• Using a pre-existing sample that is readily available

What is a random sample?

• A sample that includes only volunteers

• A sample where everyone has the same probability of being chosen

• A sample that is biased towards a certain group

• A sample that is selected based on convenience

What is the difference between random sampling and random allocation?

• Random sampling selects participants, random allocation assigns them to groups

• There is no difference

• Random sampling is biased, random allocation is not

• Random sampling is used for surveys, random allocation for experiments

What does stratified sampling aim to achieve?

• To reflect the sub-groups within a target population

• To select participants randomly from the entire population

• To ensure all participants are volunteers

• To create a homogeneous sample

What is a potential issue with stratified sampling?

• Careful labeling of groups is required

• It is always biased

• It is too time-consuming

• It cannot be used for large populations

What does YAVIS bias refer to?

• A form of opportunity sampling

• A type of stratified sampling

• A method of random sampling

• Young, Attractive, Verbal, Intelligent, and Social participants