Random, stratified, volunteer, and opportunity sampling techniques. Flashcards
A sampling frame is a list of all individuals in the population from which the sample is ____ and it is crucial for ____ sampling.
drawn,random
The importance of a sampling frame lies in its ability to minimize ____ and ensure all potential ____ are included.
bias,participants
One drawback of random sampling is that it can be ____-intensive, especially with large or ____ populations.
resource,geographically dispersed
Systematic sampling involves selecting every ____ individual from a list, making it a variation of ____ sampling.
nth,random
Stratified sampling differs from quota sampling in that it selects participants ____ from strata (subgroups), while quota sampling selects them ____-randomly.
randomly,non
Stratified sampling (choosing from distinct subgroups) is most useful when the population has distinct ____ and their representation in the sample is ____.
subgroups,crucial
Comparative analysis between different subgroups within the population might benefit from ____ sampling due to its focus on ____ representation.
stratified,subgroup
Volunteer sampling is particularly useful when researchers study specific ____ or traits that require ____ participants.
behaviors,motivated
Volunteer sampling can introduce bias by attracting participants with specific traits, such as high ____ or interest in the ____ being studied.
motivation,topic
Self-selection bias refers to a distortion in research results caused by the ____ of who chooses to ____ in the study.
non-randomness,participate
One ethical concern in using volunteer sampling is that it may lead to ____ among participants, affecting the ____ of the research.
bias,validity
In research, ensuring volunteers are not coerced and fully understand their rights is essential for ____ and ____.
ethical standards, participant rights
Opportunity sampling saves time by selecting participants who are ____ and ____ to participate.
readily available, willing
An example of opportunity sampling in research is a psychologist selecting ____ in their ____ for a study.
students, class
Ecological (relating to living organisms and their surroundings) validity refers to the extent to which findings ____ to ____ settings; it can be reduced if the sample is not _____.
generalize, real-world, representative