A comprehensive and in-depth study of a single case or several cases. A nonexperimental design in which the investigator has little control over events.
What is a case study design.
100
Any well defined set of units of analysis.
What is a population.
100
Relies on elements in the target population to identify other elements in the population
What is a snowball sample.
100
A differential loss of subjects from experimental and control groups that affects the equivalency of groups; threat to internal validity.
What is experimental mortality.
100
Objective analysis of economic, political, cultural, or social effects of public policies.
What is policy evaluation.
200
An experiment with the random assignment of subjects to experimental and control groups with a pre-test and post-test for both groups.
What is a classic experimental design.
200
Subset of a population collected through a systematic procedure.
What is a sample.
200
Used to study a diverse but limited number of observations
What is a purposive sample.
200
A group of subjects who receives the treatment or test stimulus.
What is the experimental group.
200
The random assignment of subjects to experimental and control groups.
What is randomization.
300
A group of people who all experience a significant event in roughly the same time frame.
What is a cohort
300
Measures characteristics of the sample.
What are sample statistics.
300
Uses groups as an initial sampling frame, samples are then drawn from increasingly narrow groups until the final sample is drawn from the smallest group.
What is a cluster sample.
300
Effect, usually measured numerically, of the independent variable on the dependent variable.
What is the experimental effect.
300
A simple representation of a system by a device in order to study its behavior.
What is a simulation.
400
A group of subjects who do not receive the experimental treatment or test stimulus.
What is a control group.
400
estimate the value of population parameters
What is sample statistics
400
A sample in which elements are chosen for inclusion in a nonprobabilistic manner in proportion to their representation in the population.
What is a quota sample.
400
Experimental designs applied in a natural setting.
What are field experiments.
400
A research design (sometimes called a longitudinal design) featuring multiple measurements of the dependent variable before and after experimental treatment.
What is a time series design.
500
A research design in which measurements of independent and dependent variables are taken at the same time; extraneous factors are controlled for by statistical means.
What is a cross sectional design.
500
Describe the characteristics of a population.
What is population parameters.
500
Is drawn from a population that has been subdivided into two or more strata based on a single characteristic and elements are selected from each strata in proportion to each strata’s representation in the entire population.
What is a stratified sample.
500
The ability to show that manipulation or variation of the independent variable causes the dependent variable to change.
What is internal validity.
500
The ability to generalize from one set of research findings to other situations.