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Chapter-12 The Basis for Drawing Conclusions

BOOK TITLE: Biomedical Research Methodology

Author
1. Das Ranjan
2. Das PN
ISBN
9789350250174
DOI
10.5005/jp/books/11438_12
Edition
1/e
Publishing Year
2011
Pages
13
Author Affiliations
1. Lady Hardinge Medical College and Associated Hospitals, New Delhi, India
2. Delhi Institute of Rural Development, New Delhi, India
Chapter keywords
Concluding the research, Statistical association, Spurious, Indirect, Direct/causal, Concept of cause, Theories and models, Henle-koch postulates, Internal versus external validity.

Abstract

This chapter deals with The Basis for Drawing Conclusions and discusses the various types of statistical association, viz. spurious, indirect and direct or causal association. The chapter further analyzes the various theories and concepts used to infer causation; including the necessary and/or sufficient model and Hill\'s criteria. This chapter by including a brief discussion on internal and external validity of research studies.

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