- CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. DESCRIPTIVE). Slide 1. Clipping is a handy way to collect important slides you want to go back to later. Statistical Methods in Clinical Research. Quantitative vs. Qualitative: Methods and Process The scientific method, also known as a priori or pre-established design. 1994. page 99 63 Tips 6 (b) P-value vs. 95CI (4) Adapted from Armitage, P. and Berry, G. Statistical methods in medical research. Data types Summarizing data using descriptive statistics Standard error Confidence Intervals. P Values and Confidence Intervals Confidence intervals provide a range of plausible values of the population mean For most tests, if the confidence interval includes 0, then it is not significant. Sample size calculation yields the number of study subjects needed, given a certain desired power to detect a difference and a certain level of P value that will be considered significant. Talk about Probabilities Average Properties, We are NOT concerned with the detailed behavior, An Isolated System is in Equilibrium when its, But, note! Errors Type I error Claiming a difference between two samples when in fact there is none. @ A B C D E F G H I J K L M N O P Q R S T U V W X Y Z [ \ ] ^ _ ` a b c d e f h i j k l m n o p q r s t u v w x y z { | } ~ Fn KT XAYM( JFIF f f Exif MM * b j( 1 r2 i f f Adobe Photoshop CS Macintosh 2008:11:28 11:45:55 &( . Typically 0.05 is used, Errors Type II error Claiming there is no difference between two samples when in fact there is. The scientific study of behavior and mental processes Philosophical Developments A Question Introduction%20linkage%20analysis,%20Genetic%20markers,%20mapping%20functions%20Lecture%203. This analysis doesnt take into. 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We model patterns in the data in such a way to account for randomness and uncertainty in the observations, and then draw inferences about the process or population being studied. Use of emergent design utilizing constant comparison and revision. Each has, A molecule travels in 3 dimensions with a mean, The techniques used are Powerful General. CCPR offers "drop-in" statistical consulting services to meet short-term needs of CCPR affiliates. al. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. uji hipotesis. STATISTICAL TOOLS NEEDED - PowerPoint PPT Presentation Hidden error because cant be detected without a proper power analysis. @ n ? " To quantitatively introduce probability concepts, In its simplest, idealized form, the random walk, as in the figure above A drunk starts out from, Each step he takes is of equal length l. The man, direction of each step (right or left) is, preceding step. dev. (N-n1)!n1pn1qn2, But, for our special case (p q) 1, (p q)N-1, Summary The mean number of steps to the right, We might have guessed this! Standard Error Significance: Is the basis of confidence intervals A 95% confidence interval is defined by Sample mean (or proportion) 1.96 X standard error Since standard error is inversely related to the sample size: The larger the study (sample size), the smaller the confidence intervals and the greater the precision of the estimate. PPT Introduction to Statistical Analysis - UC Berkeley School of Information Basics stat ppt-types of data Farhana Shaheen 23.3k views Null hypothesis AND ALTERNAT HYPOTHESIS ADESH MEDICAL COLLEGE 53.5k views Presentation of data Ruby Ocenar 256k views Research Design gaurav22 401.8k views Standard deviation P. G. Department of Botany, Berhampur University 82.6k views Chi squared test Dhruv Patel 6.4k views The PowerPoint PPT presentation: "Chapter 1: Introduction to Statistical Methods" is the property of its rightful owner. - Chapter 9. PPT - Chapter 1: Introduction to Statistical Methods PowerPoint Now customize the name of a clipboard to store your clips. T value = difference between means standard error of difference T value then looked up in Table to determine significance, Paired T Tests Uses the change before and after intervention in a single individual Reduces the degree of variability between the groups Given the same number of patients, has greater power to detect a difference between groups. B^uuhm?}{].~}v_J;xogJY]@.)oqC? large data, Statistical Methods - . Applications of Statistics in Research Bandit Thinkhamrop, Ph.D. (Statistics) Department of Biostatistics and Demography Faculty of Public Health Khon Kaen University. The dependent variable is always the property you are trying to explain; it is always the object of the research. charles e. mcculloch division of biostatistics. gordon c. nagayama hall 355 straub phone: 346-4969 e-mail: gnhall@darkwing.uoregon.edu. Practical Statistics for Medical Research. You might even have a presentation youd like to share with others. - Introduction to Statistics 1.1 An Overview of Statistics 1.2 Data Classification 1.3 Experimental Design * Larson/Farber 4th ed. GEOG: 3000- Advanced Geographic Chapter I:Introduction MIS 542 2014/2015 Fall, - Chapter I:Introduction MIS 542 2014/2015 Fall, Statistics: A Gentle Introduction By Frederick L. Coolidge, Ph.D. Sage Publications, - Statistics: A Gentle Introduction By Frederick L. Coolidge, Ph.D. Sage Publications Chapter 1 A Gentle Introduction Chapter 1*, UCLA STAT 13 Introduction to Statistical Methods. 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Two main statistical methods are used in data analysis: descriptive statistics, which summarizes data using indexes such as mean and median and another is inferential statistics, which draw conclusions from data using statistical tests such as student's t-test. N. lt(?m)2gt lt(m - ltmgt)2gt in the net displacement? In doing so, the statistician seeks to limit bias, maximize objectivity, and obtain results that are scientifically valid. (Pearsons) Chi-Squared (2) Test Used to compare observed proportions of an event compared to expected. Blackwell Scientific Publications, Oxford. If so, share your PPT presentation slides online with PowerShow.com. Much more useful than correlation Allows prediction of values of Y rather than just whether there is a relationship between two variable. marcia a. testa, mph. Presentation Transcript. Data presentation is an extension of data cleaning, as it involves arranging the data for easy analysis. One-sided vs. Two-sided Most tests should be framed as a two-sided test. Types of data Continuous data Theoretically infinite possible values (within physiologic limits) , including fractional values Height, age, weight Can be interval Interval between measures has meaning. Here, you can use descriptive statistics tools to summarize the data. # $ % & ' ( ) * + , - . By accepting, you agree to the updated privacy policy. A measure of the precision of a sample in estimating the population parameter. Chapter 1: Introduction to Statistical Methods Description: . The application of statistical methods extracts information from . Statistics in research - SlideShare Table of contents Methods for collecting data Examples of data collection methods Methods for analyzing data Cathy Walker. Schedule Introduction Data Analysis--Introduction Data Collection Instruments Issues in Research Design Sample Size Sources of Error Statistical Methods in Clinical Trials - . If so, just upload it to PowerShow.com. Clinical Investigation and Outcomes Research Statistical Issues in Designing Clinical Research - . The aim of this study was to compare PPT and traditional lecture method in material understandability, effectiveness and attitude among university students. Test to compare several means. ? The unit staff provide advice about what to do and how to do it as well as . We've encountered a problem, please try again. Activate your 30 day free trialto continue reading. Blackwell Scientific Publications, Oxford. Walker, Glenn A., and Jack Shostak. Example: A relative risk of 4 might have a confidence interval of 1.05 to 9, suggesting that although the estimate is for a 400% increased risk, an increased risk of 5% to 900% is plausible. Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. Learn faster and smarter from top experts, Download to take your learnings offline and on the go. They'll give your presentations a professional, memorable appearance - the kind of sophisticated look that today's audiences expect. p. The, the lamp post is at x 0. roger l. bertholf, ph.d., dabcc associate, Statistical Methods - . Now customize the name of a clipboard to store your clips. During her talk, Li will share personal and . Very helpful- In analysis of height and weight, for a known height, one can predict weight. It appears that you have an ad-blocker running. Similarly, we can, Of course, ltn1gt ltn2gt N(p q) N as it. RESEARCH (PART 1 For quantitative data, you can use statistical analysis methods to test relationships between variables. gordon c. nagayama hall 355 straub phone: 346-4969 e-mail: gnhall@darkwing.uoregon.edu. Research Methods and Statistics - PowerPoint PPT Presentation - PowerShow We've encountered a problem, please try again. Can be ratio Ratio of the measures has meaning Weight, height, Types of Data Why important? Learn faster and smarter from top experts, Download to take your learnings offline and on the go. Ratios: if CI includes 1, then is not significant The interval contains the true population value 95% of the time. Now customize the name of a clipboard to store your clips. Tap here to review the details. The SlideShare family just got bigger. PPT Describing and Presenting Data - shsu.edu Test about a slope. Ratio of two interval data points has no meaning Temperature in celsius, day of the year). Remember there is variability among samples- they might seem to come from different populations but they may not. Systematic Random Sampling is a method of probability sampling in which the defined target population is ordered and the sample is selected according to position using a skip interval.. The independent variable usually occurs earlier in time than the dependent variables. PPT - Applications of Statistics in Research PowerPoint Presentation Would need to do pair-wise tests. Arriving at the Junction of Statistics and Biology: My Journey - Introduction to Hypothesis Testing Chapter 8 - Chapter Outcomes After studying the material in this chapter, you should be able to: Formulate null and alternative An Introduction to Statistical Problem Solving in Geography - 2nd Edition. Activate your 30 day free trialto continue reading. Descriptive Statistics Descriptive statistics are methods for organizing and summarizing data. As N increases, the mean value increases ? }>@X'- (W? vORv[K? Tentative date of next journal submission: For what are you most likely to depend on AI-assistance? Winner of the Standing Ovation Award for Best PowerPoint Templates from Presentations Magazine. Quantitative vs. Qualitative: Prototypical Studies Experimental or correlational designs are used to reduce error, bias and the influence of extraneous . 63^*6oFhdBXP6mkw P_(axEknr_F.VpH^oEB~,xF.Yxl8goKNst=vq~A($rVqg$rQ/$K7v-yG_I/G?WyOKTk3QyIYzp-V^XtwR>sgZa~'C]A|#Ho52;ndYF{Z'#*h 0t`s?gai4 VUsB9. This course The Physics of systems containing, Classical Newtons Laws ?? Activate your 30 day free trialto unlock unlimited reading. The four types of statistical methods and the - ResearchGate Is the most common value More frequently used to describe the distribution of data Uni-modal, bi-modal, etc. Sample Size for Continuous Data Stata input: Mean 1 = 20, mean 2 = 30, = .05, power (1-) =.8, std. Create stunning presentation online in just 3 steps. Well convert it to an HTML5 slideshow that includes all the media types youve already added: audio, video, music, pictures, animations and transition effects. PPTX REACH Resources | Informing more effective humanitarian action
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