CONTENTS
1.3.
1.3.9 CONSORT
Problems
References
Rating Studies by the Level of Evidence
Populations and Samples
2.
2.
2.
2.
Basic Concepts
Definitions of Types of Samples
2.2.1 Simple Random Samples
2.2.
2.2.
Methods of Selecting Simple Random Samples
2.3.
2.3.2 Tables of Random Numbers
2.3.
Application of Sampling Methods in Biomedical Studies
2.4.
2.4.2 Samples for Surveys
2.4.3 Samples for Experiments
2.4.4 Samples for Prospective Studies
2.4.5 Samples for Case/Control Studies
Problems
References
Other Types of Random Samples
Reasons for Using Simple Random Samples
Selection of a Small Simple Random Sample
Sampling With and Without Replacement
Characteristics of a Good Sampling Plan
Collecting and Entering Data
3.1 Initial Steps
3.1.
3.1.
3.1.3 Testing the Collection Process
3.2 DataEntry
3.3 Screening the Data
3.4 CodeBook
Decide What Data You Need
Deciding How to Collect the Data
Problems
References
Frequency Tables and Their Graphs
Numerical Methods of Organizing Data
4.1.1 An Ordered Array
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