Well convert it to an HTML5 slideshow that includes all the media types youve already added: audio, video, music, pictures, animations and transition effects. It appears that you have an ad-blocker running. Data Analysis and Presentation Describing and Presenting Data Three important criteriaaccuracy, conciseness, and understandability Researchers should always present their data in ways that most accurately represent the data Numerical data can be classified as numerical (example: percentages, (means) or graphical (graphs) method) Statistics Three areas: 1) Descriptive - central tendency . The sample is chosen by selecting a random starting point and then picking every i th element in succession from the sampling frame. Types of Data Discrete Data-limited number of choices Binary: two choices (yes/no) Dead or alive Disease-free or not Categorical: more than two choices, not ordered Race Age group Ordinal: more than two choices, ordered Stages of a cancer Likert scale for response E.G. ? Statistical methods assist in classification in four ways: in devising probability models for data and classes so that probable classifications for a given set of data can be identified; in developing tests of validity of particular classes produced by a classification scheme; in comparing different classification schemes for effectiveness; and Tap here to review the details. Now customize the name of a clipboard to store your clips. During her talk, Li will share personal and . 3rd edition. marcia a. testa, mph. or the 2nd Moment of P(u) about the mean. We had, m n1 n2 2n1 N. So, ltmgt 2ltn1gt, ?m m - ltmgt (2n1 N) (2ltn1gt - N) 2(n1, (?m)2 4(?n1)2. Hidden error because cant be detected without a proper power analysis. No problem. Clearly, m n1 n2, so ltmgt ltn1gt - ltn2gt N( p, So, if p q , ltmgt 0 so, ltxgt ltmgtl 0, Question 3 What is the dispersion (or variance), That is, what is the spread in n1 values about, So, we first need to calculate the quantity, Use a similar trick as we did before note, After algebra (in the book) using p q 1, we, So, finally, using lt(?n1)2gt lt(n1)2gt - (ltn1gt)2, This is the dispersion or variance of the, The root mean square (rms) deviation from the, (?n1) ? It has millions of presentations already uploaded and available with 1,000s more being uploaded by its users every day. d d @ @@ `` H ( c Power is the ability of a study to avoid a Type II error. Do not sell or share my personal information, 1. 3 !1AQa"q2B#$Rb34rC%Scs5&DTdEt6UeuF'Vfv7GWgw 5 !1AQaq"2B#R3$brCScs4%&5DTdEU6teuFVfv'7GWgw ? Univariate, bivariate analysis, hypothesis testing, chi square, Medical Statistics Part-I:Descriptive statistics, Choosing the Right Statistical Techniques, Basics of Educational Statistics (Inferential statistics), Statistics in research by dr. sudhir sahu, Basics of Educational Statistics (Descriptive statistics), CABT Math 8 measures of central tendency and dispersion, SHAYA'A OTHMAN MANAGEMENT & RESEARCH METHODOLOGY, STATISTICAL PROCEDURES (Discriptive Statistics).pptx, Operation research history and overview application limitation, Use of quantitative techniques in economics. Test of Strength & Direction of Linear Relationship of 2 Quantitative Variables. If O(u) is any function of u, the mean value of, Some simple mean values that are useful for, This is a measure of the central value of u, Consider the quantity ?u u - u (deviation from, ? Statistical methods are mathematical formulas, models, and techniques that are used in statistical analysis of raw research data. [A}?-wm}. Research Scholar at Indian Institute of Technology, Madras. H H JFIF H H Adobe_CM Adobe d So, lt(?m)2gt 4lt(?n1)2gt, Summary 1 Dimensional Random Walk Problem, Probability Distribution is Binomial WN(n1), Mean number of steps to the right ltn1gt Np. Confidence Intervals May be used to assess a single point estimate such as mean or proportion. The goal of statistics is to help researchers organize and interpret the data. I can advise you this service - www.HelpWriting.net Bought essay here. If so, just upload it to PowerShow.com. We focus on methods in eight areas of statistical research and maintain expertise in each. Also called a error. You might get some help from www.HelpWriting.net Success and best regards! STATISTICS IN In inferential statistics, we are generally using a sample. Statistical Methods in Clinical Trials - . You can read the details below. the spread of the u values about the mean u. Clipping is a handy way to collect important slides you want to go back to later. Most research studies result in a extensive. Talk about Probabilities Average Properties, We are NOT concerned with the detailed behavior, An Isolated System is in Equilibrium when its, But, note! Clipping is a handy way to collect important slides you want to go back to later. Statistical Methods. Forget the drunk, lets get back to Physics! The probability of not making a Type II error is 1 - , which is called the power of the test. Remember there is variability among samples- they might seem to come from different populations but they may not. We've encountered a problem, please try again. In fact, statistical methods dominate the scientific research as they include planning, designing, collecting data, analyzing, drawing meaningful interpretation and reporting of research findings. need to solve 1023, Quantum Schrdingers Equation ?? By accepting, you agree to the updated privacy policy. Each has, A molecule travels in 3 dimensions with a mean, The techniques used are Powerful General. 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. Tap here to review the details. ziad taib biostatistics astrazeneca march 7, 2012. types. Looks like youve clipped this slide to already. Data presentation. - Chapter 1: Introduction and Research Methods What is Psychology? TI%)$IJB'mVl~~ {kc$N/^\p% I]zDdA h7+L$"H.1KaP Zs.emeni"^]WON/~whm{+?4sZ@2 !X(5Ze `gookv mp9@TX_Ku~K%goECcx:n;?(7 Mid-value in interquartile range. Document presentation format: On-screen Show Company: SIMS, UC Berkeley Other titles: Times New Roman Book Antiqua Wingdings pvf-112000 Introduction to Statistical Analysis Approximate (!) Enjoy access to millions of ebooks, audiobooks, magazines, and more from Scribd. ? Analysis of Time Series Data 9.1 Basic concepts 9.2 General model formulations 9.3 Smoothing methods 9.4 OLS regression models 9.5 Stochastic time series CHAPTER 2 Research Methods in Industrial/Organizational Psychology. Quantitative vs. Qualitative: Prototypical Studies Experimental or correlational designs are used to reduce error, bias and the influence of extraneous . data sharing / standardization. course overview course, Introduction to Statistical Computing in Clinical Research - . 63^*6oFhdBXP6mkw P_(axEknr_F.VpH^oEB~,xF.Yxl8goKNst=vq~A($rVqg$rQ/$K7v-yG_I/G?WyOKTk3QyIYzp-V^XtwR>sgZa~'C]A|#Ho52;ndYF{Z'#*h 0t`s?gai4 VUsB9. (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! Interquartile range Is the range of data from the 25th percentile to the 75th percentile Common component of a box and whiskers plot It is the box, and the line across the box is the median or middle value Rarely, mean will also be displayed. 3rd edition. We've updated our privacy policy. By accepting, you agree to the updated privacy policy. Usually used for 3 or more samples. Weve updated our privacy policy so that we are compliant with changing global privacy regulations and to provide you with insight into the limited ways in which we use your data. gordon c. nagayama hall 355 straub phone: 346-4969 e-mail: Clinical Research Methods - . Practical Statistics for Medical Research, Correlation Correlation Coefficient .3 Correlation Coefficient 0 Source: Altman. Teaching Assistants: Katie Tranbarger & Scott Spicer, Y or unravel reasons/causes of - MAS1401 Statistical Methods An Introduction to Statistical Methods used in the Agricultural and Biological Sciences Lecturer: Dr David Walshaw School of Mathematics Statistics 202: Statistical Aspects of Data Mining, - Statistics 202: Statistical Aspects of Data Mining Professor David Mease Tuesday, Thursday 9:00-10:15 AM Terman 156 Lecture 13 = Finish Chapter 5 and Chapter 8, - Title: CHAPTER 6: LINEAR PROGRAMMING Author: chen_zhimin Last modified by: user Created Date: 10/20/2004 1:00:08 PM Document presentation format. You can read the details below. Sz_]WMi4}S:4c_KC%. A very large study might find that a difference of .1 on a VAS Scale of 0 to 10 is statistically significant but it may be of no clinical significance A large study might find many significant findings during multivariable analyses. ADVANCED STATISTICAL METHODS IN AGRICULTURAL RESEARCH - . - CrystalGraphics offers more PowerPoint templates than anyone else in the world, with over 4 million to choose from. If it appears they are not from same population, cant tell which sample is different. Activate your 30 day free trialto unlock unlimited reading. Now customize the name of a clipboard to store your clips. By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. supported by the institute for clinical and translational, Practical Applications of Statistical Methods in the Clinical Laboratory - . STATISTICAL ANALYSIS If so, share your PPT presentation slides online with PowerShow.com. 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. Similarly, we can, Of course, ltn1gt ltn2gt N(p q) N as it. Get powerful tools for managing your contents. Schedule Introduction Data Analysis--Introduction Data Collection Instruments Issues in Research Design Sample Size Sources of Error 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. More than one method is . By whitelisting SlideShare on your ad-blocker, you are supporting our community of content creators. making, Statistical Methods - Prognostic factors of survival in a randomized phase iii trial (mpact) of weekly nab -paclitaxel. dev. All available places can be occupied in, Note However! JMCON. 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.. Practical Statistics for Medical Research. Instant access to millions of ebooks, audiobooks, magazines, podcasts and more. 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. Regression Based on fitting a line to data Provides a regression coefficient, which is the slope of the line Y = ax + b Use to predict a dependent variables value based on the value of an independent variable.

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