Consistency with which the same measure produces similar results after time.
Is the degree to which a measure is accurate and really measures what it claims to measure.
well-defined group of people or things that is of interest
that part of the population that is studied
each person or thing has an equal chance of being selected
based on convenience or availability
Involves examining and interpreting non numerical material
Ex:A researcher works in a meat-packing plant and describes his experiences
Sociologist focus on a numerical analysis of people's responses or specific characteristics
Ex: Reported number of safety violations are analyzed in relationship to number of inspections.
Sociologists usually talk about _____ —the relationship between _____ —rather than ____-.
Correlation, variables, causation
Used to systematically collect data from respondents using questionaries, face to face interviews, telephone interviews, or a combination of these techniques.
Examines data that have been collected by someone else
Includes historical materials, personal documents, public records, and official statistics