a statement of how variables are expected to be related to one another, often according to predictions from a theory.
a factor thought to be significant for human behavior, which can vary (or change) from one case to another.
the way in which a researcher measures a variable.
research method (or research design)
one of seven procedures that sociologists use to collect data: surveys, participant observation, case studies, secondary analysis, documents, experiments, and unobtrusive measures.
the extent to which an operational definition measures what it is intended to measure.
the extent to which research produces consistent or dependable results.
the repetition of a study in order to test its findings.
the collection of data by having people answer a series of questions.
a target group to be studied.