Dr . Gopinath Agnihotram

Biochemist, Institute for Post Graduate Teaching and Research in Ayurveda, Jamnagar, Gujarat

Address for correspondence: Dr.Gopinath Agnihotram, Biochemist, Institute for Post Graduate Teaching and Research in Ayurveda,Gujarat Ayurved University, Jamnagar, Gujarat, India-361008

Email: agnbio1985@gmail.com

Introduction: After confirmation of any line and area of Research work, the Basic Question starts with Collection of Sample size determination, but before that in a health science research "why statistical methods are so important?" Simple answer is that, statistical methods are used throughout a study that includes planning, designing, collecting data, analyzing and drawing meaningful interpretation and report the findings. Hence, it is important that a researcher knows the concepts of at least basic statistical methods used at various stages of a research study. This helps the researcher in the conduct of an appropriately well-designed study leading to valid and reliable results that can be generalized to the population. A well-designed study possesses fewer biases, which intern gives precise, valid and reliable results. There are many statistical methods and tests that are used at various stages of a research. In this communication, we discuss the overall importance of statistical considerations in medical research with the main emphasis on estimating minimum sample size for different study objectives.

Keywords : Biostatistics, Medical Research, Confidence Interval, Probability, Sample size .