Experimental treatment initiated by a researcher.
What is the independent variable?
This research design is used by researchers to examine relationships between or among variables.
What is correlational research design?
The 3 properties of an experimental design.
What are randomization, control, and manipulation?
Increases the likelihood that the differences in outcomes between the experimental and control groups are not related to chance.
What is randomization?
This type of research design is used when the dependent variable has already been affected by the independent variable.
What is a retrospective or ex post facto study?
Type of non-experimental design that can be classified as descriptive, exploratory or comparative.
What is survey design?
This group receives the treatment in a true experimental design.
What is the experimental/treatment group?
This type of study should be used when data are collected at only one point in time.
What is cross-sectional?
One or both of these properties are missing from a quasi-experimental design.
What are randomization and control?
This type of threat to validity is minimized by the use of a Solomon four-group design.
What is testing?
This threat to internal validity is most closely associated with a longitudinal design.
What is mortality?
This type of research design collects data from the same group of participants at different points of time in the future.
What is cohort design (longitudinal, prospective, repeated measures)?
This type of research design is primarily used when participants will not be randomly assigned to groups, but will be pre-tested prior to an intervention.
What is non-equivalent control group design
This type of research is used to develop and evaluate a data collection instrument.
What is methodological research?
A researcher uses data from a preexisting data set from a prior study and reanalyzes it for a current study.
What is a secondary analysis?