Clinical Trial
A clinical trial is a prospective study that involves human subjects in which an intervention is to be evaluated. In a clinical trial, subjects are followed from a well-defined starting point or baseline. The goal of a clinical trial is to determine whether a cause-and-effect relationship exists between the intervention and response. Examples of interventions used in clinical trials include drugs, surgery, medical devices, and education and subject management strategies. In each of these cases, clinical trials are conducted to evaluate both the beneficial and harmful effects of the new intervention on human subjects before it is made available to the population of interest. Special considerations for conducting clinical trials include subject safety and informed consent, subject compliance, and intervention strategies to avoid bias. ...
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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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