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Title      : MSc.CND103 Research Methods and Bio-statistics
Subject      : Clinical Nutrition and Dietetics
copyright ©  2018     : Karnataka State Open University
Author      : KSOU
Publisher      : Karnataka State Open University
Chapters/Pages      : 16/249
Total Price      : Rs.      : 180
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Research hypothesis, Null and Alternative Hypothesis, Type I and Type II Errors Total views (359)  
The practicing physician or dietitian must remain abreast of new information and techniques and meet standards for continuing medical education. A major source of new information is the medical journal. Given the competition involved in achieving publication of research, as well as the review and editing process, the reader might justifiably assume that published studies are correct in their metho ......
Pages: 12
Price: Rs 0   
Methods to Control Type I and Type II Errors Total views (362)  
Evaluating the relative seriousness of type I versus type II errors in classical hypothesis testing and control of type I and Type II errors.
Pages: 11
Price: Rs 8.25   
Randomization and Blinding Total views (359)  
A good experiment or trial minimizes the variability of the evaluation and provides. the unbiased evaluation of the intervention by avoiding confounding from other factors which are known and unknown Randomization insures that each patient has an equal chance of receiving any of the treatments under study, generate comparable intervention groups which are alike in all the important aspects except ......
Pages: 10
Price: Rs 7.5   
Sample Size Estimation and Power of Study Total views (358)  
Clinical research studies (Surveys, experiments, observational studies etc. are always better when they are carefully planned. Good planning has many aspects. The problem should be carefully defined and operationalized. Experimental or observational units must be selected from appropriate population. The study must be randomized correctly. The procedures must be followed carefully. Finally, the s ......
Pages: 13
Price: Rs 9.75   
Developing Survey Instrument Total views (359)  
Scales are the most commonly used method of data collection in field research Over the past several years, hundreds of scales have been developed to assess attitudes, knowledge, perceptions or opinions of students, teachers, parents and organizations in order to examine the hypothesized relationships with behavior and other constructs.
Pages: 11
Price: Rs 8.25   
Validity and Reliability Measures Total views (360)  
Key indicators of the quality of a measuring instrument are the reliability and validity of the measures. The process of developing and validating an instrument is in large part focused on reducing error in the measurement process. Reliability estimates evaluate the stability of measures, internal consistency of measurement instruments, and inter rater reliability of instrument scores.
Pages: 9
Price: Rs 6.75   
Sample Procedures Total views (364)  
Sampling is very often used in our daily life. For example while purchasing food grains from a shop we usually examine a handful from the bag to assess the quality of the commodity. A doctor examines a few drops of blood as sample and draws conclusion about the blood constitution of the whole body. Thus most of our investigations are based on samples. In this chapter, let us see the importance of ......
Pages: 18
Price: Rs 13.5   
Methods of Data Collection Total views (366)  
Data Collection is an important aspect of any type of research study. Inaccurate data collection can impact the results of a study and ultimately lead to invalid results. Data collection methods for impact evaluation vary along a continuum. At the one end of this continuum are quantitative methods and at the other end of the continuum are Qualitative methods for data collection.
Pages: 14
Price: Rs 10.5   
Introduction of Scientific Research and Good Scientific Practices (GSP) Total views (451)  
The scientific enterprise is built on a foundation of trust. Society trusts that scientific research results are an honest and accurate reflection of a researcher's work. Researchers equally trust that their colleagues have gathered data carefully, have used appropriate analytic and statistical techniques, have reported their results accurately, and have treated the work of other researchers with ......
Pages: 15
Price: Rs 11.25   
Types of Scientific Research and Their Role in Nutrition and Dietetics Total views (449)  
Scientific Research is the systematic process of collecting and analyzing information to increase our understanding of the phenomenon under study. It is the function of the researcher to contribute to the understanding of the phenomenon and to communicate that understanding to others. This chapter explains what research is and what it is not. Eight characteristics of research are presented.
Pages: 16
Price: Rs 12   
Writing Scientific Articles Total views (448)  
scientific or research article or paper is a technical (or essayistic?) document that describes a significant experimental, theoretical or observational extension of current knowledge, or advances in the practical application of known principles. It is important to emphasize that a research article (further referred as RA) should report on research findings that are not only sound (valid) and prev ......
Pages: 13
Price: Rs 9.75   
Role of Biostatistics in Scientific Research Total views (461)  
Biostatistics has been demanded increasingly in biomedical research since the 1960s for support in experimental design, mathematical and statistical modelling as well as computational statistics. This resulted in the establishment of biostatistical units in universities, research institutes and larger pharmaceutical companies; a development not without disturbances and regularly re-thinking the ro ......
Pages: 14
Price: Rs 10.5   
Basic Terms, Measures of Central Tendency, Dispersion Total views (446)  
Statistics represents that body of methods by which characteristics of a population are inferred through observations made in a representative sample from that population. Since scientists rarely observe entire populations, sampling and statistical inference are essential. This article first discusses some general principles for the planning of experiments and data visualization.
Pages: 12
Price: Rs 9   
Probability, Random Variables, and Probability Distributions Total views (447)  
The foundation of all statistical methodology is probability theory, which progresses from elementary to the most advanced mathematics. Much of the misunderstanding and abuse of statistics comes from the lack of understanding of its probabilistic foundation. When assumptions of the underlying probabilistic (mathematical) model are grossly violated, derived inferential methods will lead to misleadi ......
Pages: 12
Price: Rs 9   
Application of Statistical Software and Basics of Bio-Informatics Total views (955)  
The objective of statistical methods is to make the process of scientific research as efficient and productive as possible, many scientists and engineers have inadequate training in experimental design and in the proper selection of statistical analyses for experimentally acquired data. The purpose of this lesson is to provide readers with definitions and examples of widely used concepts in statis ......
Pages: 22
Price: Rs 16.5   
Bio Statistical Methods for Hypothesis Testing Total views (450)  
With inferential statistics, you are trying to reach conclusions that extend beyond the immediate data alone. For instance, we use inferential statistics to try to infer from the sample data what the population might think. Or, we use inferential statistics to make judgments of the probability that an observed difference between groups is a dependable one or one that might have happened by chance ......
Pages: 47
Price: Rs 35.25   

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