Methods of meta-analysis : correcting error and bias in research findings / Hunter, John E. (John

Incomparable Participants: Statistical Methods Like ANCOVA to the Rescue -- Observational Designs -- Cross

Public health research methods / Guest, Greg, 1963- editor of compilation.

Research methods in health promotion / Salazar, Laura Francisca, 1960- editor.

Research in practice : applied methods for the social sciences / Terre Blanche, M. J. (Martin J.)

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Research methods and statistics for public and nonprofit administrators : a practical guide /

Social sciences -- Statistical methods.

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Research methodology : a step-by-step guide for beginners / Kumar, Ranjit, author.