Examlex
Which of the following trends are supported by the comparing the 1972 and the 2000 General Social Surveys?
Volunteer Bias
The distortion of research results due to differences between those who choose to participate in studies and those who do not.
Representative Sample
A portion of the population that correctly mirrors the characteristics of the whole population.
Operationally Defined
A term or variable is defined by the specific process or set of criteria by which it is measured or determined in a study or experiment.
Participant Observation
A research method where the investigator actively engages in the community or situation being studied while observing its dynamics.
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