Intervention
Intervention research examines the effects of an intervention on an outcome of interest. The primary purpose of intervention research is to engender a desirable outcome for individuals in need (e.g., reduce depressive symptoms or strengthen reading skills). As such, intervention research might be thought of as differing from prevention research, where the goal is to prevent a negative outcome from occurring, or even from classic laboratory experimentation, where the goal is often to support specific tenets of theoretical paradigms. Assessment of an intervention's effects, the sine qua non of intervention research, varies according to study design, but typically involves both statistical and logical inferences.
The hypothetical intervention study presented next is used to illustrate important features of intervention research. Assume a researcher wants to examine the ...
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Reader's Guide
Descriptive Statistics
Distributions
Graphical Displays of Data
Hypothesis Testing
Important Publications
Inferential Statistics
Item Response Theory
Mathematical Concepts
Measurement Concepts
Organizations
Publishing
Qualitative Research
Reliability of Scores
Research Design Concepts
Research Designs
Research Ethics
Research Process
Research Validity Issues
Sampling
Scaling
Software Applications
Statistical Assumptions
Statistical Concepts
Statistical Procedures
Statistical Tests
Theories, Laws, and Principles
Types of Variables
Validity of Scores
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