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Research Designs II

Systematic observations of relationships between two or more variables in natural setting refers to what research design? Exploratory
What is the focus of exploratory research? It predict variable effects or tests relationships within clinical theory.
What kind of research describes a population? Descriptive research
What type of research observes relationships between variables? exploratory
What type of research looks for cause and effect relationships? experimental
Testable factors identifiable prior to outcomes is prospective or retrospective? prospective
Testable factors identifiable after data collection is prospective or retrospective? retrospective
In what kind of study does the researcher follow a cohort of subjects over time, performing repeated measurements at prescribed intervals? Longitudinal Study
What is the major advantage of a longitudinal study? The ability to accumulate data through intensive documentation of growth and change on the same individuals.
In this type of study, the researcher studies a stratified group of subjects at one point in time and draws conclusions about a population by comparing the characteristics of those strata. Cross-sectional study
Which approach, cross-sectional or longitudinal, is used more often because of its efficiency? cross-sectional study
What is the major threat to validity in a cross-sectional study? sample selection
What do many of the extraneous variables that interfere in cross-sectional studies pertain to? cohort effects
Effects that are not age specific but are due to a subjects generation or time of birth are known as? cohort effects
What is the purpose of a correlational study? To describe the nature of existing relationships among variables.
Data from which king of study often provide the rationale for clinical decisions or the generation of hypothesis? correlational studies
What kind of study is designed to predict a behavior or response based on the observed relationships between a certain behavior and other variables predictive correlational study
What approach is especially useful for validation of diagnostic and prognostic information? predictive correlational study
What is a method of epidemiologic investigation in which groups of individuals are selected on the basis of whether or not they have the disorder under study? case-control study
In a case-control study, those that have the condition being studied are considered the ___? case
In a case-control study, those that do not have the condition being studied are considered the ___? control
Created by: txst fall 2008