provides a quantitative or numeric description of trends, attitudes, or opinions of a population by studying a sample of that population.
survey research
Refers to the group being studied
Population
To generalize from a sample of a population so inferences can be made about characteristics, attitudes or behaviors.
What is the purpose of a survey research?
A characteristic that can be measured or observed and that varies among the people or organization being studied.
Variable
a term that describes whether one can draw meaningful and useful inferences from scores on the instruments
Validity
A sampling strategy where the researcher first identifies groups then names within the group.
multi-staged sampling
Discuss advantages of identifying attributes of a large group of population from a small group of individuals.
How do you indicate a survey is the preferred survey type of data collection?
Variables that cause, influence, or affects outcomes.
Independent variable
Refers to whether scores to items are internally consistent.
Reliability
How can researchers identify the selection process for individuals?
Through random sampling
Variables that depend on the independent variable. They are the outcomes of the influence of the independent variable.
Dependent variable
A procedure in which participants with certain traits are matched and then randomly assigned to control experimental groups.
Matching participants
Testing a treatment on a outcome controlling on all other outcomes that might influence that outcome.
What is a experimental design?
Variables that stand in between the independent and dependent variables. They mediate the effects of the independent variable on the dependent variable.
Mediating variables/ extraneous/ confounding variable
A procedure used in quantitative research for selecting participants each individual has a equal probability in being selected from the population, reflecting a true representation.
Random sampling
How do you indicate the number of people in a sample?
Use a sample size formula available in many survey texts.
Cross-sectional- data collected at one point in time. Longitudinal- data collected overtime.
What is cross-sectional and a longitudinal outcome?
They are new variables constructed by a researcher and multiplying it by another to get a joint impact.
Moderating variables